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KotlinNullPointerException for android::onClick<p>I`m just started learning Kotlin, and i have a problem with one of the buttons.</p> <p>In MainActivity i have a button, that shows a popup with EditText and Button. In that popup user enters a city, and variable CITY changes according to user input after pressing a butt...
<p><strong>Just simply do this</strong></p> <pre><code>// Variable declaration private var btn: Button? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val menuActivity = findViewById&lt;Button&gt;(R.id.ac...
KotlinNullPointerException for android::onClick
android|kotlin
0
99
2
72,210,044
72,210,044
3
true
2022-05-12T02:03:53.280Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: KotlinNullPointerException for android::onClick<p>I`m just started learning Kotlin, and i have a problem with one of the buttons.</p> <p>In MainActivity i ha...
72,210,818
How to iterate each row according to values of row above?<p>Suppose sensors are attached to 3 climbers scaling a structure and these sensors capture a certain measurement at random times. The data are captured into the data frame below (the data frame is a lot longer than this):</p> <pre><code>df = pd.DataFrame({ 'Name...
<p>The job essentially seems to be filling missing values by a previous value if such value exists at that measurement for each climber, so <code>groupby.ffill</code> should do the job:</p> <pre class="lang-py prettyprint-override"><code>out = df[['Name']].join(df.groupby('Name').ffill()) </code></pre> <p>Output:</p> <...
How to iterate each row according to values of row above?
python|pandas|dataframe|numpy|pandas-groupby
0
47
1
72,210,876
72,210,876
3
true
2022-05-12T06:10:52.013Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to iterate each row according to values of row above?<p>Suppose sensors are attached to 3 climbers scaling a structure and these sensors capture a certai...
72,212,401
How to display different colors in geom_point?<p>This is my dataframe:</p> <pre><code>df = structure(list(qCountry = c(&quot;AT&quot;, &quot;DE&quot;, &quot;ES&quot;, &quot;FI&quot;, &quot;FR&quot;, &quot;GR&quot;, &quot;HU&quot;, &quot;IR&quot;, &quot;IT&quot;, &quot;LV&quot;, &quot;NL&quot;, &quot;POL&quot;, &quot;P...
<p>You can create a new column with the color name and call <code>scale_color_identity()</code>:</p> <pre class="lang-r prettyprint-override"><code>df %&gt;% mutate(color_plot = ifelse(qCountry == &quot;EU&quot;, &quot;red&quot;, &quot;black&quot;)) %&gt;% ggplot(aes(x = reorder(qCountry,-Mean), y = Mean, group = ...
How to display different colors in geom_point?
r|dataframe|ggplot2
0
32
1
72,212,461
72,212,461
3
true
2022-05-12T08:34:34.733Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to display different colors in geom_point?<p>This is my dataframe:</p> <pre><code>df = structure(list(qCountry = c(&quot;AT&quot;, &quot;DE&quot;, &quot;...
72,213,506
Do databases use their own binary encodings to store data on disk? Why not use Google Protobuf?<ol> <li>What binary encodings are used by databases like SQLite 3, MySQL, PostgreSQL, etc to persist data on disk?</li> <li>If Google Protobuf is good, why not use that to encode and store data on disk?</li> <li>Are Google P...
<p>&quot;good&quot; is contextual; protobuf is &quot;good&quot; for x-plat general purpose data representation where that data needs to support round-trip of unexpected fields, etc; these are not the same problems that databases face. Databases usually use custom data/memory layouts based on row layouts - and the faste...
Do databases use their own binary encodings to store data on disk? Why not use Google Protobuf?
json|database|encoding|protocol-buffers
0
36
1
72,213,633
72,213,633
3
true
2022-05-12T09:54:20.887Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Do databases use their own binary encodings to store data on disk? Why not use Google Protobuf?<ol> <li>What binary encodings are used by databases like SQLi...
72,213,568
How to make a bootstrap card to always have the same dimensions<p>I am making a very simple project in order to learn API calls on Angular, which is working perfectly. My problem comes with the HTML design. I am using bootstrap 5 to make the design a little bit friendly, but since I have not worked a lot with that libr...
<pre><code>&lt;div class=&quot;container&quot;&gt; &lt;div class=&quot;row&quot;&gt; &lt;div class=&quot;col&quot;&gt; &lt;div class=&quot;card h-100&quot;&gt; &lt;div class=&quot;card-body&quot;&gt; &lt;h5 class=&quot;card-title&quot;&gt;Card title&lt;/h5&gt;...
How to make a bootstrap card to always have the same dimensions
html|css|bootstrap-5
0
69
2
72,213,905
72,213,905
3
true
2022-05-12T09:58:58.153Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to make a bootstrap card to always have the same dimensions<p>I am making a very simple project in order to learn API calls on Angular, which is working ...
72,215,972
Accessing property in an object<p>Consider this code snippet</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>class A { constructor() { this._elem = 5; } get elem() {...
<p>No, they are not equivalent, and this is because <code>obj.elem ? obj.elem : 42</code> will execute the getter and see if its return value is truthy or falsy. If it happens to be falsy, then this expression will evaluate to 42. Yet, <code>&quot;elem&quot; in obj</code> is true independent on whether the method would...
Accessing property in an object
javascript
0
34
1
72,216,101
72,216,101
3
true
2022-05-12T12:54:41.880Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Accessing property in an object<p>Consider this code snippet</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="fal...
72,216,559
Search Last 7 days excluding today Oracle SQL<p>I have the below code to which I want to return the last 7 days excluding today (for example from 5th May - 11th May as opposed to 5th May - 12th May)</p> <p>What else would I be able to include to acheive this?</p> <pre><code> SELECT * FROM TABLE_1 WHERE DATE_TIME &g...
<p>You want to have a range that starts from 7 days before midnight today and ends before midnight today:</p> <pre><code>SELECT * FROM table_name WHERE date_time &gt;= TRUNC(sysdate) - 7 AND date_time &lt; TRUNC(sysdate); </code></pre>
Search Last 7 days excluding today Oracle SQL
sql|oracle
0
47
2
72,216,702
72,216,702
3
true
2022-05-12T13:32:11.657Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Search Last 7 days excluding today Oracle SQL<p>I have the below code to which I want to return the last 7 days excluding today (for example from 5th May - 1...
72,212,714
Can I track workspace changes in Perforce?<p>Our Jenkins job downloads some code from a Perforce server, using a pre-defined workspace. It sometimes fails with the following error message:</p> <pre> Client 'xxxx' can only be used from host 'yyyy'. </pre> <p>When I look at the workspace (&quot;client&quot; is an obsolet...
<p>First and foremost, you should set the <code>locked</code> option on the client if you don't want anyone else messing with it (and set its <code>Owner</code> to be the user who runs the Jenkins job, and ensure that this user is password-protected so that nobody else can impersonate Jenkins).</p> <p>To track changes ...
Can I track workspace changes in Perforce?
continuous-integration|perforce
0
37
1
72,217,143
72,217,143
3
true
2022-05-12T08:57:47.760Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Can I track workspace changes in Perforce?<p>Our Jenkins job downloads some code from a Perforce server, using a pre-defined workspace. It sometimes fails wi...
72,218,238
How to delete first line of a file if it does not contain a specified string?<p>I have files that look like this:</p> <pre><code>username Total 0 username Total 0 username Total 0 username Total 0 username Total 0 </code></pre> <p>But some are malformed and have the incorrect first line like this:</p> <pre><code>Total ...
<pre><code>perl -ne 'print if 1 != $. || /username/' </code></pre>
How to delete first line of a file if it does not contain a specified string?
perl|awk|sed
0
60
3
72,218,266
72,218,266
3
true
2022-05-12T15:20:44.813Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to delete first line of a file if it does not contain a specified string?<p>I have files that look like this:</p> <pre><code>username Total 0 username To...
72,218,599
PHP Array to String Conversion When Adding Strings in Foreach<p>I have an object which contains currency properties with their respective values. I need to add an extra amount to these, which I have simplified by appending a &quot;+ TAX&quot; value.</p> <p>But I keep getting &quot;array to string conversion&quot; error...
<p>You're modifying the object while you're looping over it, adding a <code>total</code> property. So a later iteration of the loop tries to use <code>total</code> as a currency and create another element in the nested <code>total</code> array.</p> <p>Use a separate variable during the loop, then add it to the object a...
PHP Array to String Conversion When Adding Strings in Foreach
php|arrays|object
0
122
2
72,218,793
72,218,793
3
true
2022-05-12T15:47:17.653Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: PHP Array to String Conversion When Adding Strings in Foreach<p>I have an object which contains currency properties with their respective values. I need to a...
72,218,987
How to merge two objects and keep count<p>I am building a Rails 5.2 app. In this app I am working with statistics.</p> <p>I generate two objects:</p> <pre><code>{ &quot;total_project&quot;: { &quot;website&quot;: 1, &quot;google&quot;: 1, &quot;instagram&quot;: 1 } } </code></pre> <p>And...
<pre><code>@total_sources = @total_project.merge(@total_leads) do |key, ts_value, tp_value| ts_value + tp_value end </code></pre> <p>If there can be more than 2 sources, put everything in an array and do.</p> <pre><code>@total_sources = source_array.reduce do |accumulator, next_source| accumulator.merge(next_source...
How to merge two objects and keep count
ruby-on-rails
0
48
2
72,219,710
72,219,710
3
true
2022-05-12T16:15:56.683Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to merge two objects and keep count<p>I am building a Rails 5.2 app. In this app I am working with statistics.</p> <p>I generate two objects:</p> <pre><c...
72,220,061
Inserting new values in a table if SQL had Dictionary and for-each<p>Let's say my table of <code>myTable</code> has a column1 that has some values already in it. Now I am given some new values that I should put in a newly created column named '<code>column2</code>' . These are one to one associated together and unique....
<p>You can use a <a href="https://docs.microsoft.com/en-us/sql/t-sql/queries/table-value-constructor-transact-sql?view=sql-server-ver15" rel="nofollow noreferrer">Table Value Constructor</a>:</p> <pre><code>declare @Samples as Table ( Column1 VarChar(10), Column2 VarChar(10) ); -- Initialize the sample data. insert in...
Inserting new values in a table if SQL had Dictionary and for-each
sql|tsql
0
24
2
72,221,578
72,221,578
3
true
2022-05-12T17:46:04.990Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Inserting new values in a table if SQL had Dictionary and for-each<p>Let's say my table of <code>myTable</code> has a column1 that has some values already in...
72,220,612
Python and CX_Oracle Invalid SQL Statement<p>I'm writing a Python script to fetch some values from Oracle, but by the middle I have to set an ID to a package so it can create the corresponding view with the data I want.</p> <p>I'm trying to execute:</p> <pre><code>ora_query = cursor.execute(&quot;EXECUTE VW_WEEKLY_CALL...
<p>The statement you provided is not a valid SQL statement. It is a SQL*Plus command. You want to do something like this instead:</p> <pre><code>company_id = '1111111111' cursor.callproc('VW_WEEKLY_CALL_LOG_PKG.SET_COMPANY_ID', [company_id]) </code></pre>
Python and CX_Oracle Invalid SQL Statement
python|oracle|cx-oracle
0
112
1
72,221,605
72,221,605
3
true
2022-05-12T18:39:19.543Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Python and CX_Oracle Invalid SQL Statement<p>I'm writing a Python script to fetch some values from Oracle, but by the middle I have to set an ID to a package...
72,221,653
How to save a nested object using typeorm and Nestjs?<p>I have the following Data entity:</p> <pre><code>@PrimaryGeneratedColumn() id: number @Column() dataA: string @Column() dataB: string @Column() dataC: number @Column() dataD: number </code></pre> <p>The data object I am trying to save:</p> <pre><code>c...
<p>You need to flatten it, write a function to do that before passing object into the <code>Repository</code>.</p> <pre><code>export function flattenData(data) { return { dataA: data.dataA, dataB: data.nestedData.dataB, dataC: data.nestedData.dataC, dataD: data.dataD, } } // the...
How to save a nested object using typeorm and Nestjs?
typescript|postgresql|nestjs|typeorm
0
787
1
72,222,175
72,222,175
3
true
2022-05-12T20:18:55.957Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to save a nested object using typeorm and Nestjs?<p>I have the following Data entity:</p> <pre><code>@PrimaryGeneratedColumn() id: number @Column() d...
72,222,237
Accessing a public member from within a generic method<p>I'm trying to have some toolbox with each tool in that toolbox being something quite different in functionality. So every tool would require its own config to be created and passed at the start, or when you need to change params, while the base class would be jus...
<p>When you do this:</p> <pre><code>public abstract void Setup&lt;T&gt;(T setupParams) </code></pre> <p>You are using <code>&lt;T&gt;</code> to define the type. That type doesn't exists. <code>T</code> isn't a class. You can put any name and compile:</p> <pre><code>public override void Setup&lt;WhatEver&gt;(WhatEver se...
Accessing a public member from within a generic method
c#|generic-method
0
30
1
72,222,345
72,222,345
3
true
2022-05-12T21:28:01.830Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Accessing a public member from within a generic method<p>I'm trying to have some toolbox with each tool in that toolbox being something quite different in fu...
72,223,114
PLM: Cannot add dummy variable<p>I am currently working on estimating a fixed-effect model using <code>plm()</code>. The following table is an example of my data (please note that I used arbitrary numbers here). I ran the regression using district and year fixed-effect, and as expected, there was an error due to the du...
<p>Despite the test you point to, this is definitely a collinearity problem. There is no independent information in <code>grade</code> that is not already accounted for by <code>id</code>. Here's a simple example. In this model, the only variable is the <code>id</code> factor - which is essentially estimating the me...
PLM: Cannot add dummy variable
r|panel-data|plm
0
127
1
72,223,728
72,223,728
3
true
2022-05-12T23:42:57.840Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: PLM: Cannot add dummy variable<p>I am currently working on estimating a fixed-effect model using <code>plm()</code>. The following table is an example of my ...
72,224,660
Compilation error - defining a concrete implementation of templated abstract class<p>I have an abstract class in my header file:</p> <pre><code>template &lt;class T&gt; class IRepository { public: virtual bool SaveData(Result&lt;T&gt; &amp;r) = 0; //virtual Result&lt;T&gt; &amp; GetData()const =...
<p>While implementing the template class method outside the class definition, the template class requires template arguments:</p> <pre><code>template &lt;class T&gt; bool Repo1&lt;T&gt;::SaveData(Result&lt;T&gt; &amp;r) </code></pre>
Compilation error - defining a concrete implementation of templated abstract class
c++|templates|abstract-class
0
31
1
72,224,865
72,224,865
3
true
2022-05-13T05:01:28.130Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Compilation error - defining a concrete implementation of templated abstract class<p>I have an abstract class in my header file:</p> <pre><code>template &lt;...
72,213,314
How to Specifically Schedule Pipelines with Azure DevOps<p>How to schedule a one time run, non-repeating pipeline in AzurDevOps. I want to create this pipeline for our UAT environment, but I don't want to run it manually, so I was thinking is there a way I can put multiple specific dates to run the pipeline?</p>
<p>In short, we can't schedule a <strong>non-repeating</strong> pipeline in DevOps because it defines a schedule using <a href="https://docs.microsoft.com/en-us/azure/devops/pipelines/process/scheduled-triggers?view=azure-devops&amp;tabs=yaml#cron-syntax" rel="nofollow noreferrer">cron syntax</a>. Each Azure Pipelines ...
How to Specifically Schedule Pipelines with Azure DevOps
azure|shell|azure-devops
0
217
1
72,225,114
72,225,114
3
true
2022-05-12T09:41:10.423Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to Specifically Schedule Pipelines with Azure DevOps<p>How to schedule a one time run, non-repeating pipeline in AzurDevOps. I want to create this pipeli...
72,226,047
MongoDB - Loop through array of arrays<p>I have a document that contains an array of arrays in my MongoDB collection.</p> <pre><code>{ &quot;platformId&quot;:&quot;CMC_123&quot;, &quot;carInfo&quot;:[ [&quot;Toyota&quot;,20,&quot;White&quot;], [&quot;Suzuki&quot;,19,&quot;Gray&quot;], [&...
<ol start="2"> <li><p><code>$project</code> -</p> <p>2.1 <code>$arrayToObject</code> - Convert array to object with result <em>2.1.1</em>.</p> <p>2.1.1 <code>$map</code> - Iterate <code>carInfo</code> array. Get the first item as <code>k</code> and the second item as <code>v</code> for the current iterated array (<code...
MongoDB - Loop through array of arrays
mongodb|mongodb-query|aggregation-framework
0
203
1
72,226,155
72,226,155
3
true
2022-05-13T07:42:51.980Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: MongoDB - Loop through array of arrays<p>I have a document that contains an array of arrays in my MongoDB collection.</p> <pre><code>{ &quot;platformId&q...
72,226,902
Can angular polyfills.ts file be safely removed<p>Now that angular is working with Ivy and decided to abandon internet explorer.</p> <p>Shall we safely remove the <code>polyfills.ts</code> file in our Angular <code>&gt;= v13</code> project?</p>
<p>According to the <a href="https://angular.io/guide/browser-support#enabling-polyfills-with-cli-projects" rel="nofollow noreferrer">docs</a>, Angular has a mandatory polyfill for <code>zone.js</code>. Without this polyfill, your application may not work. So it is not safe to remove the <code>polyfills.ts</code> file....
Can angular polyfills.ts file be safely removed
angular|polyfills
0
167
1
72,227,024
72,227,024
3
true
2022-05-13T08:55:28.790Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Can angular polyfills.ts file be safely removed<p>Now that angular is working with Ivy and decided to abandon internet explorer.</p> <p>Shall we safely remov...
72,227,597
Swift AVPlayer How To Stop Automatically When Audio Finished<p>I've created a button to play audio (streaming from a link) with AVPlayer in Swift. How to stop the audio automatically when the audio time is finished?</p> <p>Here is some of my code :</p> <pre><code>var player : AVPlayer? url = URL(string: &quot;https://c...
<p>You can use the NSNotificationCenter Observer</p> <pre><code> NSNotificationCenter.defaultCenter().addObserver(self, selector: &quot;playerDidFinishPlaying:&quot;, name: AVPlayerItemDidPlayToEndTimeNotification, object: item) player?.play() </code></pre> <p>and stop player in this function</p> <pre><code> ...
Swift AVPlayer How To Stop Automatically When Audio Finished
swift|audio|uikit|avplayer
0
33
1
72,227,820
72,227,820
3
true
2022-05-13T09:49:29.647Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Swift AVPlayer How To Stop Automatically When Audio Finished<p>I've created a button to play audio (streaming from a link) with AVPlayer in Swift. How to sto...
72,228,187
Initialization of multiple empty lists in Python<p>What is the correct way to initialize a bunch of variables to independent empty lists in Python 3?</p> <pre><code>&gt;&gt;&gt; (a, b) = ([],)*2 &gt;&gt;&gt; a.append([2,3]) &gt;&gt;&gt; a [[2, 3]] &gt;&gt;&gt; b [[2, 3]] &gt;&gt;&gt; b.append([2,3,]) &gt;&gt;&gt; b [[2...
<p><em><strong>Why the first attempt does not allocate a, b independently in memory?</strong></em> because they refer to same address in memory.</p> <pre class="lang-py prettyprint-override"><code>(a, b) = ([],)*2 print(id(a)) print(id(b)) # 4346159296 # 4346159296 </code></pre> <pre class="lang-py prettyprint-override...
Initialization of multiple empty lists in Python
python|list|memory
0
72
3
72,228,357
72,228,357
3
true
2022-05-13T10:34:14.507Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Initialization of multiple empty lists in Python<p>What is the correct way to initialize a bunch of variables to independent empty lists in Python 3?</p> <pr...
72,228,498
Java : Are sub threads lock the main thread?<p>I am new to Java, I have want to starts 02 thread to increase an attribute of an object and I want to print out the value of this attribute until it reach a certain value. I use 02 threads started inside <code>increaseByThread()</code> method.</p> <p>I use two code snippet...
<p>You have not started any new thread yet.</p> <p>Each thread needs to run something. That is it's run method. But by invoking <code>thread.run</code> you just execute that code on the calling thread, which is your main thread.</p> <p>Instead you need to start the new thread using <code>thread.start()</code>. This fun...
Java : Are sub threads lock the main thread?
java|multithreading
0
61
2
72,228,606
72,228,606
3
true
2022-05-13T10:58:37.010Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Java : Are sub threads lock the main thread?<p>I am new to Java, I have want to starts 02 thread to increase an attribute of an object and I want to print ou...
72,227,848
How to verify ssh key on Gitlab.com<p>I'm setting up a SSH key for the first time on Gitlab.com. I'm stuck at <a href="https://docs.gitlab.com/ee/user/ssh.html#verify-that-you-can-connect" rel="nofollow noreferrer">verifying</a> that you can connect: <code>ssh -T git@gitlab.example.com</code>.</p> <p>The <code>gitlab.e...
<p>Correct format is <code>ssh -T git@gitlab.com</code>.</p> <p><code>my-workspace-name</code> is not part of the instance url.</p>
How to verify ssh key on Gitlab.com
git|ssh|gitlab
0
271
1
72,228,894
72,228,894
3
true
2022-05-13T10:08:00.473Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to verify ssh key on Gitlab.com<p>I'm setting up a SSH key for the first time on Gitlab.com. I'm stuck at <a href="https://docs.gitlab.com/ee/user/ssh.ht...
72,229,737
How i can get selection model from one method to another metod from other class with Table View?<p>I want to get one selected model with name, author,key_words to next window. Where it will be in tex fields. After i changing this, i want to save it in database by SQL Update command</p> <pre><code>public void displaySel...
<p>You can get a reference to the controller via method <a href="https://openjfx.io/javadoc/18/javafx.fxml/javafx/fxml/FXMLLoader.html#getController()" rel="nofollow noreferrer">getController</a> in class <code>javafx.fxml.FXMLLoader</code>. Then you can invoke methods of the controller class.</p> <p>Add a method for s...
How i can get selection model from one method to another metod from other class with Table View?
java|javafx|fxml
0
56
1
72,230,438
72,230,438
3
true
2022-05-13T12:37:30.167Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How i can get selection model from one method to another metod from other class with Table View?<p>I want to get one selected model with name, author,key_wor...
72,230,986
Is there a way to use the #define directive to create a constant struct?<p>Let's say I have this struct</p> <pre><code>typedef struct { int AM; char* name, surname; }Item; </code></pre> <p>and I want to define a constant NULLitem with AM = -1 and NULL name/surname. Is there a way to do it with #define?</p>
<pre><code>#define NULLitem (const Item){ .AM = -1, .name = NULL, .surname = NULL } </code></pre> <p>That's a C99 <a href="http://port70.net/%7Ensz/c/c11/n1570.html#6.5.2.5" rel="nofollow noreferrer">compound literal</a>.</p>
Is there a way to use the #define directive to create a constant struct?
c|struct
0
49
1
72,231,021
72,231,021
3
true
2022-05-13T14:12:46.977Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Is there a way to use the #define directive to create a constant struct?<p>Let's say I have this struct</p> <pre><code>typedef struct { int AM; char...
72,232,384
Parameter pack iteration<p>Why this code doesn't compile ?</p> <pre><code>#include &lt;iostream&gt; #include &lt;typeinfo&gt; template &lt;typename ...Ts&gt; void f(); template &lt;typename T&gt; void f() { std::cout &lt;&lt; typeid(T).name() &lt;&lt; std::endl; } template &lt;typename T, typename U, typename .....
<p>Compiling with g++ gives a pretty clear explanation of what's happening:</p> <pre><code>prog.cc: In function 'int main(int, char**)': prog.cc:20:24: error: call of overloaded 'f&lt;int, float, char&gt;()' is ambiguous 20 | f&lt;int, float, char&gt;(); | ~~~~~~~~~~~~~~~~~~~^~ prog.cc:5:6: note: candi...
Parameter pack iteration
c++|variadic-templates
0
57
1
72,232,486
72,232,486
3
true
2022-05-13T15:58:23.737Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Parameter pack iteration<p>Why this code doesn't compile ?</p> <pre><code>#include &lt;iostream&gt; #include &lt;typeinfo&gt; template &lt;typename ...Ts&gt...
72,233,752
QT QML + C++ MVVM<p>As far as I know in QT QML is not possible to instantiate a C++ class in QML Component, unless it is a QQuickItem. I would not like to put all ViewModels on ViewEngine context because it is a very bad pratice create all classes in memory without using.</p> <p>My question is: How can I instantiate a ...
<p>C++ objects do not need to be QQuickItems, they need to be QObjects. You just need to <a href="https://doc.qt.io/qt-5/qqmlengine.html#qmlRegisterType" rel="nofollow noreferrer">register</a> your class with the QQmlEngine, like this:</p> <pre><code>qmlRegisterType&lt;MyObject&gt;(&quot;my.component.library&quot;, 1, ...
QT QML + C++ MVVM
qt|mvvm|qml
0
116
1
72,233,985
72,233,985
3
true
2022-05-13T18:01:59.207Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: QT QML + C++ MVVM<p>As far as I know in QT QML is not possible to instantiate a C++ class in QML Component, unless it is a QQuickItem. I would not like to pu...
72,234,136
JSON parse a property of an object inside an object?<p>I'm trying to <code>JSON.parse(nodeInfluxSeries)</code> a property that is in an object, that is also in an object and in an array. Like so:</p> <pre class="lang-js prettyprint-override"><code> Array [ Object { &quot;id&quot;: 1, &quot;properties&quot;: O...
<p>You need to nest the <code>JSON.parse()</code> inside the <code>properties</code> property of the result.</p> <pre><code>random.map(r =&gt; { return { ...r, properties: { ...r.properties, nodeInfluxSeries: JSON.parse(r.properties.nodeInfluxSeries) } }; }) </code></pre> <p>You can also upd...
JSON parse a property of an object inside an object?
javascript|arrays
0
63
1
72,234,176
72,234,176
3
true
2022-05-13T18:40:32.120Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: JSON parse a property of an object inside an object?<p>I'm trying to <code>JSON.parse(nodeInfluxSeries)</code> a property that is in an object, that is also ...
72,234,709
how can i validate data in dd-mm-yyyy format<p>I have the following date <code>&quot;13-05-2022&quot;</code></p> <pre><code>if (!validateDate(this.formGeral.value.data.singleDate?.formatted)) { this.errors.push('Data com formato inválido! Selecione a data de entrega novamente, se o problema persistir, favor entrar e...
<p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>function validateDate(date) { const regex = new RegExp('([0-2]{1}[0-9]{1}|3[0-1]{1})[-](0[1-9]|1[0-2])[-]([0-9]{4})'); return re...
how can i validate data in dd-mm-yyyy format
javascript|angular
0
31
1
72,234,787
72,234,787
3
true
2022-05-13T19:44:42.220Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: how can i validate data in dd-mm-yyyy format<p>I have the following date <code>&quot;13-05-2022&quot;</code></p> <pre><code>if (!validateDate(this.formGeral...
72,237,050
Change default terminal in VS Code to cmd<p>When I open VS Code, the default terminal is PowerShell and the default path is <code>PS E:\Research\GM\Articles\Modularity\Covariance network\Graph theory\Metric basics\Consensus clustering\clustering_programs_5_2</code>.</p> <p>Q1: How could I change the default path in Pow...
<p>Press <strong>Ctrl + Shift + P</strong>. Type &quot;def&quot; and the default terminal selection option pops.<br> <a href="https://i.stack.imgur.com/aH8rg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aH8rg.png" alt="enter image description here" /></a></p> <p>Click on it and select your preferr...
Change default terminal in VS Code to cmd
visual-studio-code
0
382
1
72,237,062
72,237,062
3
true
2022-05-14T03:12:26.800Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Change default terminal in VS Code to cmd<p>When I open VS Code, the default terminal is PowerShell and the default path is <code>PS E:\Research\GM\Articles\...
72,236,802
Java "Catalan number" generator is almost working right<p><strong>What a Catalan number is:</strong> <a href="https://en.wikipedia.org/wiki/Catalan_number" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/Catalan_number</a></p> <p>I am doing some Java exercises and a couple of the test numbers aren't passing eve...
<p>doubles introduce errors. silently.</p> <p>Why? Well, computers. They are powerful but they aren't magic.</p> <p>Think about a numbers line - between 0 and 1 there are an <em>infinite</em> amount of them.</p> <p>And double purports to be capable of representing that entire infinity. More even; 2.0 is a double.</p> <...
Java "Catalan number" generator is almost working right
java|catalan
0
64
2
72,237,142
72,237,142
3
true
2022-05-14T02:02:30.283Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Java "Catalan number" generator is almost working right<p><strong>What a Catalan number is:</strong> <a href="https://en.wikipedia.org/wiki/Catalan_number" r...
72,237,213
Safe to delete contents of google cloudbuild bucket?<p>There are images there since a year ago, I am just not sure if they are used or if they are just temporarily stored there when the build happens. Do subsequent deployments override old images or do they just accumulate?</p>
<p>The images are immutable, you can safely delete one without breaking the others</p> <p>In addition, to clean your images and to save space (and money) you can use a Google Cloud tool named <a href="https://github.com/GoogleCloudPlatform/gcr-cleaner" rel="nofollow noreferrer">GCR cleaner</a></p>
Safe to delete contents of google cloudbuild bucket?
google-cloud-platform|google-cloud-run
0
34
1
72,251,579
72,251,579
3
true
2022-05-14T03:51:03.413Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Safe to delete contents of google cloudbuild bucket?<p>There are images there since a year ago, I am just not sure if they are used or if they are just tempo...
72,209,861
How to set google.protobuf.Timestamp to null?<p>How to represent a null timestamp in Google ProtoBuf?</p> <p>I am reading DateTime's from a postgreSQL database--some of which are null--into protobuf TimeStamps.</p> <pre><code>message test { google.protobuf.TimestampValue TransactionTime =1; } </code></pre> <p>Unfortu...
<p>As @JayantSeth pointed out, you should use <code>google.protobuf.Timestamp</code>.</p> <p>Since <code>Protobuf</code> forbids to set field to <code>null</code>, you could use a default value to present <code>null</code> in your application. There are two fields in <a href="https://github.com/protocolbuffers/protobuf...
How to set google.protobuf.Timestamp to null?
timestamp|protocol-buffers|grpc
0
1,587
1
72,291,422
72,291,422
3
true
2022-05-12T03:35:20.023Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to set google.protobuf.Timestamp to null?<p>How to represent a null timestamp in Google ProtoBuf?</p> <p>I am reading DateTime's from a postgreSQL databa...
72,180,166
Does the Observer Design Pattern Work For Food Delivery Status Updates?<p>I've recently been learning about the Observer design pattern and understand canonical examples like newspapers notifying their subscribers like so:</p> <pre><code>public class NewsPaper implements Publisher{ List&lt;Subscriber&gt; subscriber...
<p>Normally <strong>observer observable design pattern</strong> is used when there is a <strong>one to many relationship</strong> between objects because the basic idea of this design pattern is to notify about the <strong>state change of the observable object</strong> to <strong>all the observers</strong> who are obse...
Does the Observer Design Pattern Work For Food Delivery Status Updates?
java|oop|design-patterns|observer-pattern
0
129
1
72,181,537
72,181,537
3
true
2022-05-10T02:41:06.600Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Does the Observer Design Pattern Work For Food Delivery Status Updates?<p>I've recently been learning about the Observer design pattern and understand canoni...
72,146,933
trouble with labeling axis with strings using ggplot (R)<p>I'm a college student and we have to create some graphs using Rstudio for an assignment. I've managed to do the core objective for this first task, which is to create a simple bar graph with the provided data; however, I'm having trouble with labeling the axes ...
<p>With <code>ggplot2</code>, you have to use <code>+</code> at the end of your line of code to add additional layers to your plot. If not, then R just reads those lines of code as standalone lines, which will throw an error. So, in your code, the sign is missing at the end of <code>geom_bar</code> and <code>xlab</code...
trouble with labeling axis with strings using ggplot (R)
r|ggplot2
0
47
1
72,146,978
72,146,978
3
true
2022-05-06T20:17:32.103Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: trouble with labeling axis with strings using ggplot (R)<p>I'm a college student and we have to create some graphs using Rstudio for an assignment. I've mana...
72,208,002
Kotlin sealed classes and hashcode/equals<p>I'm seeing writing a test that I cannot assert two sealed classes with same &quot;subclass&quot; and same value under the hood are equal. They are distinct.</p> <pre><code>fun main() { val a1 = MySealed.A(&quot;foo&quot;) val a2 = MySealed.A(&quot;foo&quot;) Sys...
<p>That's normal behaviour for any class - two different instances are not equal by default, because it checks for referential equality (i.e. the two references are pointing at the same object in memory).</p> <pre><code>class NormalClass(val value: String) val a = NormalClass(&quot;foo&quot;) val b = NormalClass(&quot...
Kotlin sealed classes and hashcode/equals
kotlin|equals|hashcode|sealed-class
0
600
2
72,208,173
72,208,173
3
true
2022-05-11T21:53:35.330Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Kotlin sealed classes and hashcode/equals<p>I'm seeing writing a test that I cannot assert two sealed classes with same &quot;subclass&quot; and same value u...
72,219,298
How to prune some unnecessary branches from the Voronoi diagram?<p>I generated the Voronoi diagram using the following MATLAB code. The problem is that in the output image I obtain some useless lines that I want to remove. By useless lines, I mean like those circled in purple, so the lines that are directly attached to...
<p>You are taking each individual pixel as a cell centroid, so the Voronoi diagram encircles each individual pixel. You want to take each group of connected pixels (polygon) as a centroid. And on top of that, somehow include the size of these groups of pixels so that the Voronoi diagram doesn't cut though them.</p> <p>...
How to prune some unnecessary branches from the Voronoi diagram?
matlab|image-processing|voronoi
0
112
1
72,219,855
72,219,855
3
true
2022-05-12T16:40:16.577Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to prune some unnecessary branches from the Voronoi diagram?<p>I generated the Voronoi diagram using the following MATLAB code. The problem is that in th...
72,190,139
How to format fetched date in reactJS<p>Hi I have fetched date/data but it showing like that &quot;2022-05-14T14:00:00.000Z&quot;. How to convert this to 14/05/2022?</p> <pre><code> &lt;FetchedDate&gt; {date} &lt;/FetchedDate&gt; </code></pre> <p>Thank you for anyone help.</p>
<p>new Date(date).toLocaleDateString('en-GB');</p> <p><a href="https://i.stack.imgur.com/91pIK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/91pIK.png" alt="enter image description here" /></a></p>
How to format fetched date in reactJS
reactjs
0
35
1
72,190,196
72,190,196
3
true
2022-05-10T16:45:15.170Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to format fetched date in reactJS<p>Hi I have fetched date/data but it showing like that &quot;2022-05-14T14:00:00.000Z&quot;. How to convert this to 14/...
72,146,187
Why does xtrace show piped commands executing out of order?<p>Here's a simple reproducer:</p> <pre class="lang-sh prettyprint-override"><code>cat &gt;sample_pipeline.sh &lt;&lt; EOF set -x head /dev/urandom | awk '{\$2=\$3=&quot;&quot;; pr...
<p>When you write a pipeline like that, the shell will fork off a bunch of child processes to run all of the subcommands. Each child process will then print the command it is executing just before it calls exec. Since each child is an independent process, the OS might schedule them in any order, and various things go...
Why does xtrace show piped commands executing out of order?
linux|bash|pipe
0
59
2
72,146,384
72,146,384
3
true
2022-05-06T18:55:06.503Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Why does xtrace show piped commands executing out of order?<p>Here's a simple reproducer:</p> <pre class="lang-sh prettyprint-override"><code>cat &gt;sample_...
72,154,041
why onTap of inkwell is not working ? I tried at every place but its is not working<p>I am new to flutter. why onTap of inkwell is not working? I tried at every place but its is not working. what am i doing wrong in this? is any alternative possible?</p> <pre><code> InkWell( onTap: ()=&gt;Search_box(), child: ...
<blockquote> <p>The InkWell widget must have a Material widget as an ancestor. The Material widget is where the ink reactions are actually painted</p> </blockquote> <p>So you Should wrap the inkwell in Material widget</p> <p>in your case try this</p> <pre><code> Padding( padding: const EdgeIns...
why onTap of inkwell is not working ? I tried at every place but its is not working
flutter|dart|flutter-layout
0
188
2
72,154,243
72,154,243
3
true
2022-05-07T15:41:46.363Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: why onTap of inkwell is not working ? I tried at every place but its is not working<p>I am new to flutter. why onTap of inkwell is not working? I tried at ev...
72,148,362
How do you use mktemp to create directory in Makefile?<p>This is a Makefile piece of code of how someone may use mktemp in a Makefile</p> <pre><code>TEST=$(shell mktemp -d) mktemp: echo $(TEST) touch $(TEST)/test.txt ls $(TEST) cat $(TEST)/test.txt rm -rf $(TEST) </code></pre> <p>This is an example ...
<p>This line:</p> <pre><code>TEST=$(shell mktemp -d) </code></pre> <p>sets the value of the <code>TEST</code> variable to the string <code>$(shell mktemp -d)</code>. It doesn't expand that string (doesn't run the shell command), it just keeps the string as-is.</p> <p>Now, every time you use that value later in the mak...
How do you use mktemp to create directory in Makefile?
shell|makefile|gnu-make|mktemp
0
112
1
72,148,385
72,148,385
3
true
2022-05-06T23:40:35.930Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How do you use mktemp to create directory in Makefile?<p>This is a Makefile piece of code of how someone may use mktemp in a Makefile</p> <pre><code>TEST=$(s...
72,237,595
Get only the txt file you want from the folder containing the txt file - Python<p>I have a folder with a <code>.txt</code> files. the name of the files are:</p> <pre><code>my_file1.txt my_file2.txt my_file3.txt my_file4.txt </code></pre> <p>In this way, only the last number is different.</p> <pre><code>import pickle m...
<p>You can use <code>os.listdir()</code>:</p> <pre><code>import os import pickle my_list = [] path = &quot;/Users/users_a/Desktop/website-basic/sub_domain&quot; for file in os.listdir(path): if file.endswith(&quot;.txt&quot;): with open(f&quot;{path}/{file}&quot;,&quot;r&quot;) as f: my_list.a...
Get only the txt file you want from the folder containing the txt file - Python
python|pickle
0
80
1
72,237,611
72,237,611
3
true
2022-05-14T05:28:35.560Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Get only the txt file you want from the folder containing the txt file - Python<p>I have a folder with a <code>.txt</code> files. the name of the files are:<...
72,206,575
How can ı replace the number to white space in python<p>I have a encrypt decrypt work in phyton, first ı am changed the whitespaces to random numbers. In order to do this job, I converted the string into a list with this code <code> a = [x for x in text]</code> . ı replaced the whitespaces using this code :</p> <pre cl...
<p>That's because the character <code>'1'</code> (ascii 49) is not the same as the number <code>1</code>.</p> <p>Try this:</p> <pre><code>for i in range(lenghtOfText): try: if (int(a[i]) in range(0,10)): a[i]=&quot; &quot; except: pass </code></pre> <p>Note: Remember range's end is E...
How can ı replace the number to white space in python
python|string|list
0
71
3
72,206,648
72,206,648
3
true
2022-05-11T19:24:29.733Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How can ı replace the number to white space in python<p>I have a encrypt decrypt work in phyton, first ı am changed the whitespaces to random numbers. In ord...
72,236,222
bash output with extra newline within the string<p>I use the following command to output PID and FD related to CLOSE-WAIT sockets.</p> <pre><code>sudo ss -p | grep CLOSE-WAIT | awk '{ print $7 }' | sed 's/,pid=/ /' | sed 's/,fd=/ /' | sed 's/))//' | awk '{ print $2, $3 }' </code></pre> <p>It outputs correctly where a P...
<p>You get an extra newline because <code>for</code> doesn't just split on newlines -- it also splits on spaces, so instead of getting a pid/fd pair assigned to <code>PidFd</code>, it <em>first</em> has a PID assigned, and <em>then</em> has a FD. As extensively documented at <a href="https://mywiki.wooledge.org/DontRea...
bash output with extra newline within the string
linux|bash|awk|sed
0
57
2
72,236,296
72,236,296
3
true
2022-05-13T23:24:41.783Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: bash output with extra newline within the string<p>I use the following command to output PID and FD related to CLOSE-WAIT sockets.</p> <pre><code>sudo ss -p ...
72,159,878
how to get deleting rows count in before delete trigger in oracle<p>I'm going to create a before delete trigger in oracle in which I need to know how many records are going to be deleted, letting me to message to user if the number of deleting rows exceeds a threshold (and maybe canceling the deletion)</p> <p>The quest...
<p>A delete statement can affect many rows. There are four events on which you can place a trigger:</p> <ul> <li><strong>before statement</strong> where all you know is that 0 to n deletes are going to take place</li> <li><strong>before each row</strong> where you only see one row that is about to get deleted</li> <li>...
how to get deleting rows count in before delete trigger in oracle
sql|oracle|plsql|triggers
0
184
1
72,160,828
72,160,828
3
true
2022-05-08T09:58:24.303Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: how to get deleting rows count in before delete trigger in oracle<p>I'm going to create a before delete trigger in oracle in which I need to know how many re...
72,224,508
Python - How to get each item multiplied by the amount the user inputs?<p>I have this python3 code, it's a simple grocery list and the user can type the items he wants to buy and then the output is the total cost. But instead of repeating each item multiple times, I want the user to input the amount like...&quot;2chick...
<p>I would have approach this using <a href="https://docs.python.org/3/library/re.html?highlight=re%20match#re.match" rel="nofollow noreferrer"><code>re.match</code></a> in the following way:</p> <pre><code>import re items_dict={&quot;chicken&quot;: 50, &quot;fish&quot;:30, &quot;tomato&quot;:12, &quot;chips&quot;:5} p...
Python - How to get each item multiplied by the amount the user inputs?
python|python-3.x
0
42
1
72,224,617
72,224,617
3
true
2022-05-13T04:37:13.217Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Python - How to get each item multiplied by the amount the user inputs?<p>I have this python3 code, it's a simple grocery list and the user can type the item...
72,189,345
React.createElement: type is invalid using react-bootstrap in ClojureScript<p>I'm trying to use react-bootstrap within re-frame project. I've installed react-bootstrap with</p> <pre class="lang-sh prettyprint-override"><code>npm install react-bootstrap </code></pre> <p>and using its components like the following:</p> <...
<p>The documentation has a section on how to <a href="https://shadow-cljs.github.io/docs/UsersGuide.html#_using_npm_packages" rel="nofollow noreferrer">translate ES <code>import</code></a> for npm packages.</p> <p>There you'll find that <code>[&quot;react-bootstrap/Button&quot; :as Button]</code> should be <code>[&quot...
React.createElement: type is invalid using react-bootstrap in ClojureScript
react-bootstrap|clojurescript|reagent|re-frame|shadow-cljs
0
84
1
72,196,457
72,196,457
3
true
2022-05-10T15:43:09.960Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: React.createElement: type is invalid using react-bootstrap in ClojureScript<p>I'm trying to use react-bootstrap within re-frame project. I've installed react...
72,207,475
What do these symbols mean ??= in flutter<p>I find this in some class and am not sure what they do<br /> <code>??</code> , <code>??=</code></p> <p>example :</p> <pre><code>cursorColor ??= selectionTheme.cursorColor ?? cupertinoTheme.primaryColor; </code></pre>
<p><code>??</code> is used to provide default value for null cases.</p> <pre class="lang-dart prettyprint-override"><code>int? a ; int b = a?? 0;// it a is null b will get 0 </code></pre> <blockquote> <p><code> b ??= value;</code> Assign value to b if b is null; otherwise, b stays the same</p> </blockquote> <p><code>c...
What do these symbols mean ??= in flutter
flutter|dart
0
59
2
72,207,578
72,207,578
3
true
2022-05-11T20:53:17.127Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: What do these symbols mean ??= in flutter<p>I find this in some class and am not sure what they do<br /> <code>??</code> , <code>??=</code></p> <p>example :<...
72,236,662
Random.Choice always the same result<p>Some pretext that's maybe useful idk. I use mixer and am trying to do a random music choice but the <code>random.choice</code> always take the last one (song 5). This is my code</p> <pre><code>if Mamp=='1': vad=input(&quot;[1] Bakground music&quot;) #Mixer shit mixer.init() pygame...
<pre><code>commands=[mixer.music.load(&quot;song1.mp3&quot;), ...] current_command=random.choice(commands) current_command </code></pre> <p>You're doing this part all wrong.</p> <p>It seems like you want to make a list of commands to be executed <em>later</em>, but that's not what you're actually doing. The <code>load...
Random.Choice always the same result
python|random|pygame-mixer
0
49
1
72,236,700
72,236,700
3
true
2022-05-14T01:17:58.773Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Random.Choice always the same result<p>Some pretext that's maybe useful idk. I use mixer and am trying to do a random music choice but the <code>random.choic...
72,176,065
Is there a way to stop datajoint from asking for username and password when I import it<p>In Datajoint, you are prompted for username and password. I am creating a readthedocs website with Sphinx and I need the system to not prompt for username and password. How can I turn it off?</p>
<p>Thanks for asking this question! There are basically three ways to do this:</p> <ul> <li>dj.config.save_local(): This will save the entire dj.config as <code>json</code> on your project level</li> <li>dj.config.save_global(): This will save is on a system level</li> <li>System Variables <code>DJ_HOST</code>, <code>D...
Is there a way to stop datajoint from asking for username and password when I import it
datajoint
0
33
2
72,176,421
72,176,421
3
true
2022-05-09T17:34:24.877Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Is there a way to stop datajoint from asking for username and password when I import it<p>In Datajoint, you are prompted for username and password. I am crea...
72,213,918
cherry pick multiple commits as one without going through each one git apply patch<p>I have branch <em>A</em> with a few commits I need to cherry-pick into branch <em>B</em>. In the first cherry-picks I've added code that I've later removed in the last commits.</p> <p>When I try to cherry pick them using <em>first_comm...
<p>One quick way can be : instead of cherry-picking a sequence of individual commits you can create one single squashed commit using <code>git merge --squash</code>.</p> <hr /> <p>If you want to have a sequence of commits in the end result, then you will need to use <code>cherry-pick</code> or <code>rebase</code> to re...
cherry pick multiple commits as one without going through each one git apply patch
git|commit|cherry-pick
0
106
1
72,214,422
72,214,422
3
true
2022-05-12T10:25:50.293Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: cherry pick multiple commits as one without going through each one git apply patch<p>I have branch <em>A</em> with a few commits I need to cherry-pick into b...
72,172,151
How to use local jquery in Typo3 v10<p>Hallo I have upgraded from Typo3 v9 to Typo3 v10. Now my jquery configuration in typoscript is not working anymore.</p> <pre><code>page { javascriptLibs { jQuery = 1 jQuery.version = latest jQuery.source = local jQuery.noConflict = 0 } } </code></pre> <p>I read...
<p>As you have noticed <a href="https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/9.2/Deprecation-83806-DeprecatePagejavascriptLibsAndPagejavascriptLibsjQuery.html" rel="nofollow noreferrer"><code>page.javascriptLibs</code> was deprecated with TYPO3v9</a> and <a href="https://docs.typo3.org/c/typo3/cms-core/...
How to use local jquery in Typo3 v10
jquery|typo3|typoscript
0
54
1
72,172,249
72,172,249
3
true
2022-05-09T12:37:47.653Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to use local jquery in Typo3 v10<p>Hallo I have upgraded from Typo3 v9 to Typo3 v10. Now my jquery configuration in typoscript is not working anymore.</p...
72,213,796
Split property in array into many properties<p>I use get-childitem to get files from directory structure.</p> <pre><code>Get-ChildItem $path -Recurse -include *.jpg,*.png | select-object Directory, BaseName, Extension </code></pre> <p>I get an array of objects with properties Directory, BaseName, Extension.</p> <p>Like...
<p>Here is a possible approach:</p> <pre class="lang-sh prettyprint-override"><code>$path = 'C:\test' $maxDepth = 0 Set-Location $path # Set base path for Resolve-Path -Relative # Get all files and splits their directory paths $tempResult = Get-ChildItem $path -Recurse -include *.jpg,*.png | ForEach-Object { ...
Split property in array into many properties
powershell
0
48
1
72,215,944
72,215,944
3
true
2022-05-12T10:16:44.567Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Split property in array into many properties<p>I use get-childitem to get files from directory structure.</p> <pre><code>Get-ChildItem $path -Recurse -includ...
72,212,866
how to compare strings in python with "\r" and "\n"<p>I have 2 strings</p> <pre><code>str1 = &quot;SWITCH ASSY Drawing No.: NA &quot; str2 = &quot;SWITCH ASSY\r\nDrawing No.: NA\r\n&quot; </code></pre> <p>Python evaluates <code>str1 == str2</code> as <code>False</code> and it is pretty obvious why.</p> <p>What can I ...
<p>Do a regex replacement on all whitespace characters, and replace them with single spaces:</p> <pre class="lang-py prettyprint-override"><code>str1 = &quot;SWITCH ASSY Drawing No.: NA &quot; str2 = &quot;SWITCH ASSY\r\nDrawing No.: NA\r\n&quot; if re.sub(r'\s', ' ', str1) == re.sub(r'\s', ' ', str2): print(&qu...
how to compare strings in python with "\r" and "\n"
python|string
0
59
4
72,212,899
72,212,899
3
true
2022-05-12T09:09:25.037Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: how to compare strings in python with "\r" and "\n"<p>I have 2 strings</p> <pre><code>str1 = &quot;SWITCH ASSY Drawing No.: NA &quot; str2 = &quot;SWITCH A...
72,145,969
Using EF Core with WPF and I'd like to revert to initial state when a user press Cancel instead of OK on a dialog, is that possible and how?<p>I'm using EF Core with <a href="https://en.wikipedia.org/wiki/Windows_Presentation_Foundation" rel="nofollow noreferrer">WPF</a> and I'd like to revert any changes done on any o...
<p>Q: Is that possible and how?</p> <p>A: Sure.</p> <ol> <li><p>The most straightforward way is to only &quot;SaveChanges()&quot; when you're &quot;Done&quot; (when the user clicks <kbd>OK</kbd>).</p> </li> <li><p>Another approach might be to make <em>copies</em> of the original objects, and perform in-process operatio...
Using EF Core with WPF and I'd like to revert to initial state when a user press Cancel instead of OK on a dialog, is that possible and how?
entity-framework-core|rollback|savechanges|change-tracking|cancel-button
0
74
2
72,146,103
72,146,103
3
true
2022-05-06T18:32:49.633Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Using EF Core with WPF and I'd like to revert to initial state when a user press Cancel instead of OK on a dialog, is that possible and how?<p>I'm using EF C...
72,206,115
Does C++ let a program compiled by itself to return pointer to an array to be used directly?<p>For example, if I have some code string like this:</p> <pre><code>std::string code = R&quot;( #include&lt;thread&gt; #include&lt;iostream&gt; int main() { int array[@@size@@]; std::cout&lt;&lt;(s...
<p>As far as C++ is concerned, there may not even be a concept of processes. They are mentioned in the standard, as far as I can tell, only twice.</p> <p>Once in a recommendation about lock-free atomics, suggesting that they should also work when shared between processes, and once with regards to possible causes of fil...
Does C++ let a program compiled by itself to return pointer to an array to be used directly?
c++|process|message-passing
0
57
2
72,206,319
72,206,319
3
true
2022-05-11T18:43:42.317Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Does C++ let a program compiled by itself to return pointer to an array to be used directly?<p>For example, if I have some code string like this:</p> <pre><c...
72,151,124
why alignas(64) not aligned with 64<p>why alignas(64) not aligned with 64? for example:</p> <pre class="lang-cpp prettyprint-override"><code>struct alignas(32) st32 { float a; uint16_t b; uint64_t c; }; struct alignas(64) st64 { float a; uint16_t b; uint64_t c; }; int main() { st32 x; ...
<blockquote> <p>why &amp;st64 b: 0x7ffc59fc9684 is not 0x7ffc59fc9688</p> </blockquote> <p>Aligning a structure does not affect the alignment of the sub objects of the structure. The address of the enclosing structure is 64 byte aligned, and <code>b</code> is the second member after a 4 byte sized <code>a</code>, so it...
why alignas(64) not aligned with 64
c++|alignas
0
91
2
72,151,358
72,151,358
3
true
2022-05-07T09:17:53.790Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: why alignas(64) not aligned with 64<p>why alignas(64) not aligned with 64? for example:</p> <pre class="lang-cpp prettyprint-override"><code>struct alignas(3...
72,171,848
move semantics for `this`?<p>Imagine the following situation:</p> <pre><code>class C { public: C(std::vector&lt;int&gt; data): data(data) {} C sub_structure(std::vector&lt;size_t&gt; indices){ std::vector&lt;int&gt; result; for(auto i : indices) result.push_back(data[i]); // *** return C(result)...
<blockquote> <p>If my call was something like sub_structure(f(), ...), I could overload sub_structure by rvalue reference; however, as a class method, I'm not aware how to do that, basically based on if *this is an rvalue reference.</p> </blockquote> <p>Do you mean overloading on <strong>value category</strong>? Not su...
move semantics for `this`?
c++|move-semantics
0
76
1
72,171,977
72,171,977
3
true
2022-05-09T12:15:28.853Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: move semantics for `this`?<p>Imagine the following situation:</p> <pre><code>class C { public: C(std::vector&lt;int&gt; data): data(data) {} C sub_stru...
72,203,834
What is timezone format and how to convert it to a normal abbreviation in Swift?<p>I am working on an iOS app and after networking, I get JSON back with a timezone property formatted as some kind of number. Here is a picture</p> <p><a href="https://i.stack.imgur.com/FQftm.png" rel="nofollow noreferrer"><img src="https:...
<p><code>32400</code> (seconds) is the equivalent of 9 hours.</p> <p>You get a <code>TimeZone</code> instance with</p> <pre><code>TimeZone(secondsFromGMT: timezone) </code></pre> <p>which is GMT+0900</p> <p>However you cannot get the identifier like <code>JST</code> just from the seconds because there are multiple iden...
What is timezone format and how to convert it to a normal abbreviation in Swift?
ios|swift
0
57
1
72,203,922
72,203,922
3
true
2022-05-11T15:35:26.427Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: What is timezone format and how to convert it to a normal abbreviation in Swift?<p>I am working on an iOS app and after networking, I get JSON back with a ti...
72,180,470
Best way to append a float in a file with python?<p>I have a file with several variables that looks like this:</p> <pre><code>BTC = 375.23 SOL = 200.42 LTC = 208.91 DOT = 60.12 </code></pre> <p>And a main script. How can I append those values ? Example: change <code>BTC = 375.23</code> to <code>BTC = 420.32</code>. The...
<p>The reason you are getting the error is because <code>varfile.BTC</code> is a float.</p> <pre><code>import varfile def blah(): # varfile.BTC = 345.23 which is a float and has no append method varfile.BTC.append(float(420.32)) blah() </code></pre> <p>If your goal is to simply change the value of the variab...
Best way to append a float in a file with python?
python|append
0
63
1
72,180,529
72,180,529
3
true
2022-05-10T03:38:03.673Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Best way to append a float in a file with python?<p>I have a file with several variables that looks like this:</p> <pre><code>BTC = 375.23 SOL = 200.42 LTC =...
72,220,468
How to create a list of objects from with values from another list of values?<p>I'm trying to create a list of objects that hold a list themselves. I'm creating this from another list of elements.</p> <pre><code>class Test(): temp_list = list() x = [['a','b','c'],['g','f','h']] list_of_obj = list() for i in x: ...
<p>This is because <code>temp_list</code> is a class attribute. Class attributes are not unique to instances of the class . They are universal to all instances.</p> <p>What you want to do is create and instance attribute for <code>temp_list</code> Like this:</p> <pre><code>class Test(): def __init__(self): ...
How to create a list of objects from with values from another list of values?
python
0
64
1
72,220,516
72,220,516
3
true
2022-05-12T18:24:41.180Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to create a list of objects from with values from another list of values?<p>I'm trying to create a list of objects that hold a list themselves. I'm creat...
72,144,950
Create table from simple UNION statement<p>What is wrong with this union? first 'select' and ')' are incorrect</p> <pre><code>create table GL_ALL ( select *from GL1 ) UNION ( select *from GL2 ) UNION ( select *from GL3 ) UNION ( select *from GL4 ) UNION ( select *from GL5 ); </code></pre>
<p>That's not the correct syntax for creating a table on the fly in SQL Server, or <code>UNION</code> for that matter.</p> <p>Assuming that the schemas of each of your tables <em>are the same</em></p> <pre><code>SELECT * INTO GL_ALL FROM GL1 UNION SELECT * FROM GL2 UNION SELECT * FROM GL3 UNION SELECT * FROM GL4 UNION ...
Create table from simple UNION statement
sql|sql-server|ssms|union|union-all
0
137
1
72,145,061
72,145,061
3
true
2022-05-06T16:51:07.790Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Create table from simple UNION statement<p>What is wrong with this union? first 'select' and ')' are incorrect</p> <pre><code>create table GL_ALL ( select...
72,219,577
is it possible to return response from fetch with just promise (no async/await)<p>Why this doesn't work (I borrowed to <a href="https://jsfiddle.net/xlanglat/tyh6jjpy/" rel="nofollow noreferrer">https://jsfiddle.net/xlanglat/tyh6jjpy/</a>):</p> <pre><code> callWs2 = function(){ let url = 'https://jsonplaceholder.t...
<p><code>.then</code> method returns a <code>Promise</code> and in your case it returns a <code>Promise</code> that resolves with whatever <code>response.text()</code> resolves with. Note: <code>response.text()</code> also returns a <code>Promise</code>.</p> <blockquote> <p>Returns another pending promise object, the r...
is it possible to return response from fetch with just promise (no async/await)
javascript|promise|fetch
0
49
1
72,219,690
72,219,690
3
true
2022-05-12T17:03:29.843Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: is it possible to return response from fetch with just promise (no async/await)<p>Why this doesn't work (I borrowed to <a href="https://jsfiddle.net/xlanglat...
72,161,137
Merge and sort arrays of objects JS/TS/Svelte - conceptual understanding<p>The goal is to display a recent activity overview.</p> <p>As an example: I would like it to display posts, comments, users. A post, comment and user object live in its corresponding arrays. All of the objects have a timestamp (below createdAt), ...
<p>This is fun to think about and it's great that you're putting thought into the architecture of the activity feed.</p> <p>I'd say you're on the right track with how you're thinking of approaching it.</p> <p>Think about:</p> <ol> <li>How you want to model the data for use in your application</li> <li>How you process t...
Merge and sort arrays of objects JS/TS/Svelte - conceptual understanding
arrays|typescript|sorting|object|svelte
0
145
3
72,161,444
72,161,444
3
true
2022-05-08T12:45:58.630Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Merge and sort arrays of objects JS/TS/Svelte - conceptual understanding<p>The goal is to display a recent activity overview.</p> <p>As an example: I would l...
72,168,493
How to add image in a button html<p>How would i add an image on a button? Right now i am trying to create a banner like thing for a big button but the image doesn't seem to get inside the button as shown here: <a href="https://i.stack.imgur.com/UYxEt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UY...
<p>You can do this:</p> <pre><code>&lt;button class='project_button'&gt;Modular FPS Template &lt;img src='../Images/Projects/Modular-FPS.png' /&gt;&lt;/button&gt; </code></pre> <p>Move your image inside the button.</p>
How to add image in a button html
html|css
0
62
4
72,168,592
72,168,592
3
true
2022-05-09T07:40:19.907Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to add image in a button html<p>How would i add an image on a button? Right now i am trying to create a banner like thing for a big button but the image ...
72,206,816
How to change an enum value in Java?<p>I have an enum <code>Direction</code> which shows legal walking directions. With the helper-method <code>turnLeft</code> I want to change the value of the called enum Variable, but it does not work: The value of the enum Variable <code>direction</code>is the same after the call of...
<p>You can add the turnLeft/ turnRight methods directly inside the enum.</p> <pre class="lang-java prettyprint-override"><code>enum Direction{ UP, RIGHT, DOWN, LEFT; public Direction turnLeft() { switch(this) { case UP: return LEFT; case RIGHT: return UP; case DOWN: ...
How to change an enum value in Java?
java|enums|switch-statement|helper
0
97
1
72,207,321
72,207,321
3
true
2022-05-11T19:44:34.723Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to change an enum value in Java?<p>I have an enum <code>Direction</code> which shows legal walking directions. With the helper-method <code>turnLeft</cod...
72,189,809
POSIX Thread. Why is the producer-consumer program terminated?<p>I tried to write a simple C producer-consumer program using POSIX Thread, a library for working with threads.</p> <p>The code has a global queue from where threads exchange information. The queue has been tested and should work correctly. There are also t...
<p>gcc's <code>-fsanitize=address</code> finds the direct problem <a href="https://godbolt.org/z/GqEMvdY7h" rel="nofollow noreferrer">immediately</a> (and so should every debugger).</p> <pre class="lang-none prettyprint-override"><code>AddressSanitizer:DEADLYSIGNAL ======================================================...
POSIX Thread. Why is the producer-consumer program terminated?
c|multithreading|pthreads|producer-consumer
0
35
1
72,190,235
72,190,235
3
true
2022-05-10T16:17:48.270Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: POSIX Thread. Why is the producer-consumer program terminated?<p>I tried to write a simple C producer-consumer program using POSIX Thread, a library for work...
72,216,518
Type of arg 1 to keys must be hash error shows on Perl 5.10 but not Perl 5.16<p>I keep getting the following error:</p> <p><strong>Type of arg 1 to keys must be hash (not hash element)</strong></p> <p>at this line:</p> <pre><code>my $command = join(&quot; &quot;, @{$jparams{args}}) . &quot; -cp &quot; . $jparams{cp} ...
<pre class="lang-perl prettyprint-override"><code>keys $jparams{params} </code></pre> <p>should be</p> <pre class="lang-perl prettyprint-override"><code>keys %{ $jparams{params} } </code></pre> <hr /> <p>Your code suffers from code injection bugs.</p> <p>If the command is passed to <code>system</code> (or <code>exec</c...
Type of arg 1 to keys must be hash error shows on Perl 5.10 but not Perl 5.16
perl
0
50
2
72,216,927
72,216,927
3
true
2022-05-12T13:29:54.400Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Type of arg 1 to keys must be hash error shows on Perl 5.10 but not Perl 5.16<p>I keep getting the following error:</p> <p><strong>Type of arg 1 to keys must...
72,220,591
Nginx config to serve an Angular app under an URI prefix where files are generated in the same folder as "index.html"<p>There are a lot of Angular/Nginx examples on the web but I'm still unable to make my config work. I use Angular 13.</p> <p>In <code>angular.json</code>:</p> <ul> <li><code>outputPath</code> is &quot;<...
<p>That's because you do not understand how nginx <code>root</code>, <code>alias</code> and <code>try_files</code> directives actually works. Check the difference between <a href="https://nginx.org/en/docs/http/ngx_http_core_module.html#root" rel="nofollow noreferrer"><code>root</code></a> and <a href="https://nginx.or...
Nginx config to serve an Angular app under an URI prefix where files are generated in the same folder as "index.html"
angular|nginx
0
459
1
72,220,870
72,220,870
3
true
2022-05-12T18:37:00.027Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Nginx config to serve an Angular app under an URI prefix where files are generated in the same folder as "index.html"<p>There are a lot of Angular/Nginx exam...
72,150,025
How to validate a file starts with certain perfix format?<p>I have a list of files with names like this.</p> <p><code>[&quot;TYBN-220422-257172171.txt&quot;, &quot;TYBN-120522-257172174.txt&quot;, &quot;TYBN-320422-657172171.txt&quot;, &quot;TYBN-220622-237172174.txt&quot;, &quot;TYBN-FRTRE-FFF.txt&quot;,....]</code><...
<p>Regex explanation:</p> <ul> <li><strong>^</strong> start of the string</li> <li><strong>$</strong> end of the string</li> <li><strong>\d</strong> matches all numbers. Equivalent to [0-9]</li> <li><strong>+</strong> one or many of the expressions</li> </ul> <pre class="lang-py prettyprint-override"><code>import re f...
How to validate a file starts with certain perfix format?
python|python-2.7
0
51
3
72,150,090
72,150,090
3
true
2022-05-07T06:25:35.280Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to validate a file starts with certain perfix format?<p>I have a list of files with names like this.</p> <p><code>[&quot;TYBN-220422-257172171.txt&quot;,...
72,182,976
Plotly - how to plot Cylinder?<p>I have a function plotting the cylinder, using matplotlib. <a href="https://i.stack.imgur.com/sfxvg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sfxvg.png" alt="enter image description here" /></a></p> <p>I am wondering how to do the same using plotly?</p> <p>below...
<p>I had the chance to spend some time over the problem of creating a cylinder mesh, hence working on the triangulation.</p> <p>Here is the result. The main function is <code>cylinder_traces</code>: it returns the <code>go.Surface</code> trace, and optionally <code>go.Scatter3d</code> traces representing the wireframe ...
Plotly - how to plot Cylinder?
python|plotly
0
220
1
72,183,849
72,183,849
3
true
2022-05-10T08:26:21.307Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Plotly - how to plot Cylinder?<p>I have a function plotting the cylinder, using matplotlib. <a href="https://i.stack.imgur.com/sfxvg.png" rel="nofollow noref...
72,155,792
.NET GraphQL Hot Chocolate Projections only working for requested List of Entities but not for requested Single Entities<p>So if i understood it correctly Projections are used to get rid of the Over/ Under fetching problems you would have with normal REST-APIs.</p> <p>I already implemented a GetAll Functionality for my...
<p>Did you try this?</p> <pre class="lang-cs prettyprint-override"><code>[ExtendObjectType(typeof(Query))] public class AuthorQuery { [UseProjection] public async Task&lt;IQueryable&lt;Author&gt;&gt; Authors([Service] IAuthorService authorService) { return await authorService.GetAsync(); } [Use...
.NET GraphQL Hot Chocolate Projections only working for requested List of Entities but not for requested Single Entities
.net|.net-6.0|hotchocolate
0
330
1
72,156,310
72,156,310
3
true
2022-05-07T19:28:51.107Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: .NET GraphQL Hot Chocolate Projections only working for requested List of Entities but not for requested Single Entities<p>So if i understood it correctly Pr...
72,205,895
How to run the same JS function multiple times and wait until the previous has finished?<p>I have a function that I need to run multiple times but wait until the previous one has finished.</p> <p>Currently What I have is:</p> <pre><code>for(var x = 0; x &lt; rollsArr.length; x++){ rollDice(data.results, x) } funct...
<p>You can use async/await or Promise.then(). Reference: <a href="https://zellwk.com/blog/async-await-in-loops/" rel="nofollow noreferrer">https://zellwk.com/blog/async-await-in-loops/</a></p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pr...
How to run the same JS function multiple times and wait until the previous has finished?
javascript|async-await|promise|delay
0
141
1
72,206,050
72,206,050
3
true
2022-05-11T18:22:14.950Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to run the same JS function multiple times and wait until the previous has finished?<p>I have a function that I need to run multiple times but wait until...
72,192,386
javascript on nodejs represent timestamp in a 4 bytes array<p>In order to work with an external API, I need to store in a 4 bytes array the current timestamp. I saw in their examples that the array should look for example:</p> <blockquote> <p>[97, 91, 43, 83] // timestamp</p> </blockquote> <p>How did they get to the ab...
<p>A common timestamp metric is <a href="https://en.wikipedia.org/wiki/Unix_time" rel="nofollow noreferrer">Unix time</a>. The time I write this, the unix time is 1652213764, which in hexadecimal is <code>62 7a c8 04</code>, which indeed can be represented with 4 bytes. The equivalent in decimal bytes is <code>98 122 2...
javascript on nodejs represent timestamp in a 4 bytes array
javascript|node.js|typescript|ecmascript-6|timestamp
0
201
1
72,192,544
72,192,544
3
true
2022-05-10T20:08:09.360Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: javascript on nodejs represent timestamp in a 4 bytes array<p>In order to work with an external API, I need to store in a 4 bytes array the current timestamp...
72,161,710
Most efficient way for finding 3 rows with maximum value in column?<p>Lets us say there is a dataframe <strong>df</strong></p> <pre><code>Name Balance A 1000 B 5000 C 3000 D 6000 E 2000 F 5000 </code></pre> <p>I am looking for an approach through which I can get three rows with highest balances...
<h2>Answer</h2> <pre class="lang-py prettyprint-override"><code>df = Df({&quot;Name&quot;:list(&quot;ABCDEF&quot;), &quot;Balance&quot;:[1000,5000,3000,6000,2000,5000]}) index = df[&quot;Balance&quot;].nlargest(3).index df.loc[index] </code></pre> <h2>Output</h2> <pre><code> Name Balance 3 D 6000 1 B 50...
Most efficient way for finding 3 rows with maximum value in column?
python|pandas|dataframe|performance|processing-efficiency
0
52
2
72,161,757
72,161,757
3
true
2022-05-08T13:56:15.497Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Most efficient way for finding 3 rows with maximum value in column?<p>Lets us say there is a dataframe <strong>df</strong></p> <pre><code>Name Balance A ...
72,157,037
Optional group in regular expression<p>I have lines I'm trying to match that could be:</p> <pre><code>ACDNT: BLAHBLAH COUNTY, NC ACDNT: BLAHBLAH COUNTY, NC PERS INJ ACDNT: BLAHBLAH COUNTY, NC CMV ACDNT: SOMEWHERE ELSE </code></pre> <p>So I want a regular expression that matches &quot;ACDNT: &quot;, a location with or w...
<p>Try <code>(ACDNT: +)(.*?)( +(CMV|PERS INJ))?$</code></p> <p>Your problem is that <code>.*</code> is greedy and consumes the entire rest of the string--that's why you're seeing &quot;SOMEWHERE PERS INJ&quot; all in the same group. I changed <code>*</code> to <code>*?</code> to make it reluctant instead of greedy, and...
Optional group in regular expression
java|regex
0
78
1
72,157,085
72,157,085
3
true
2022-05-07T23:25:06.940Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Optional group in regular expression<p>I have lines I'm trying to match that could be:</p> <pre><code>ACDNT: BLAHBLAH COUNTY, NC ACDNT: BLAHBLAH COUNTY, NC P...
72,184,386
Unhandled Exception: FormatException: Invalid radix-10 number (at character 1) in Flutter<p>I am trying to convert string to int but it is throwing an exception &quot;Unhandled Exception: FormatException: Invalid radix-10 number (at character 1)&quot;</p> <pre><code>String aa = &quot;627a32b69018c4b90f77af19&quot;; int...
<p>The passed string is not a number as it contains non-digit characters like <code>a</code> or <code>f</code>.</p> <p>It seems that you like to parse the input string as a hexadecimal string, in that case provide a radix (number base) value in your code.</p> <p>The following snipped yields the output of <code>3.047725...
Unhandled Exception: FormatException: Invalid radix-10 number (at character 1) in Flutter
string|flutter|dart|integer
0
928
1
72,184,514
72,184,514
3
true
2022-05-10T10:08:52.080Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Unhandled Exception: FormatException: Invalid radix-10 number (at character 1) in Flutter<p>I am trying to convert string to int but it is throwing an except...
72,200,805
How to use jq to transform array of objects into separated list of key values - Outputing specific key value instead of array index<p>This is related to my previous question: <a href="https://stackoverflow.com/questions/71825711/how-to-use-jq-to-format-array-of-objects-to-separated-list-of-key-values">How to use jq to ...
<p>Here's a solution using <code>to_entries</code>, which decomposes an object into an array of key-value pairs:</p> <pre class="lang-sh prettyprint-override"><code>jq -r '.[] | .id as $id | to_entries[] | [$id,.key,.value] | join(&quot;|&quot;)' </code></pre> <pre class="lang-json prettyprint-override"><code>11|id|11 ...
How to use jq to transform array of objects into separated list of key values - Outputing specific key value instead of array index
json|key|jq
0
238
1
72,200,970
72,200,970
3
true
2022-05-11T12:08:00.800Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to use jq to transform array of objects into separated list of key values - Outputing specific key value instead of array index<p>This is related to my p...
72,230,647
Subquery function invoked twice if alias is used in main SQL<p>I'm trying to understand how Oracle processes SQL's to study ways of optimizing complex SQL's. Consider the test function below:</p> <pre><code>CREATE OR REPLACE FUNCTION FCN_SLOW RETURN NUMBER IS BEGIN DBMS_LOCK.SLEEP (5); --5 seconds RETURN 0; END F...
<p>The SQL engine is opting to not materialize the subquery and is pushing the function calls into the outer query where it gets called multiple times for each row. You need to force the function to be evaluated in the subquery where it is called rather than allowing the SQL engine to rewrite the query.</p> <p>One meth...
Subquery function invoked twice if alias is used in main SQL
oracle|query-optimization
0
58
2
72,230,828
72,230,828
3
true
2022-05-13T13:48:22.203Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Subquery function invoked twice if alias is used in main SQL<p>I'm trying to understand how Oracle processes SQL's to study ways of optimizing complex SQL's....
72,181,057
what is the ideal parameters for spectrogram of eeg signal?<p>I am trying to plot a spectrogram of an EEG signal whose sampling rate of 1000Hz and is filtered with a bandpass of 14 - 70 Hz, and the length of the signal is 440 ( and I cant increase the length of the signal). The signal(data link <a href="https://drive.g...
<p>I don't know what output you expect but out can try to change the shading of the pcolormesh. Also you can add a window to the computation of the spectrogram. You can also change the colors use to represent the spectrogram with cmap.</p> <pre><code>import matplotlib.pyplot as plt import numpy as np from scipy import ...
what is the ideal parameters for spectrogram of eeg signal?
python|scipy|signal-processing|spectrogram|time-frequency
0
189
1
72,181,953
72,181,953
3
true
2022-05-10T05:16:52.213Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: what is the ideal parameters for spectrogram of eeg signal?<p>I am trying to plot a spectrogram of an EEG signal whose sampling rate of 1000Hz and is filtere...
72,161,547
How can apply_filters be used to create a filter hook in wordpress?<p>Wordpress <a href="https://developer.wordpress.org/reference/functions/apply_filters/" rel="nofollow noreferrer">documentation about apply_filters</a> mentions:</p> <blockquote> <p>It is possible to <strong>create new filter hooks</strong> by simply ...
<p>Hooks (actions and filters) have two main components, the part that declares the hook, and the callbacks that implement the hook.</p> <p>A very simple example is:</p> <pre class="lang-php prettyprint-override"><code>$name = &quot;Chris&quot;; $name = apply_filters(&quot;change_name&quot;, $name); echo $name; </code>...
How can apply_filters be used to create a filter hook in wordpress?
php|wordpress|filter|hook
0
582
1
72,162,078
72,162,078
3
true
2022-05-08T13:36:17.480Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How can apply_filters be used to create a filter hook in wordpress?<p>Wordpress <a href="https://developer.wordpress.org/reference/functions/apply_filters/" ...
72,144,706
insert the last 30 date in an oracle table<p>I need to create a table where we have one date column. I need to insert the date from yesterday to yesterday-30 days.Table output should look like this</p> <p><a href="https://i.stack.imgur.com/of35d.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/of35d.p...
<p>You can use a hierarchical query such as</p> <pre><code>CREATE TABLE test AS SELECT TRUNC(sysdate) - level AS &quot;date&quot; FROM dual CONNECT BY level &lt;= 30 </code></pre> <p>or preferably use directly the query without the first line(<em>CTAS</em>) as a subquery for your main query</p>
insert the last 30 date in an oracle table
sql|oracle
0
33
1
72,144,762
72,144,762
3
true
2022-05-06T16:29:59.237Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: insert the last 30 date in an oracle table<p>I need to create a table where we have one date column. I need to insert the date from yesterday to yesterday-30...
72,186,457
How to use TryCatch Statement in ToDictionary C#?<p>I have a dictionary of asyncronous call . The problem is sometimes these asyncronous call will throw an exception but I am not entirely sure how to handle them . The GetUserLicenseTypes returns a list so if I do get an exception I still want to return an empty list.</...
<p>Here's one way:</p> <pre><code>async Task&lt;IEnumerable&lt;string&gt;&gt; GetSubscriptions(Guid userId) { try { return await _subscriptionService.GetUserSubscription(companyId, userId); } catch { return new List&lt;string&gt;(); } } var idsWithSubscriptions = await Task.WhenAll(allCompanyUsers .Select(...
How to use TryCatch Statement in ToDictionary C#?
c#|linq|exception|try-catch
0
57
2
72,186,898
72,186,898
3
true
2022-05-10T12:38:21.777Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to use TryCatch Statement in ToDictionary C#?<p>I have a dictionary of asyncronous call . The problem is sometimes these asyncronous call will throw an e...
72,204,168
How to insert particular column values to another column particular values in python dataframe<p>I have an input dataframe as below: Input df:</p> <pre><code> PET City Cost Expense 0 Dog MH 1500.0 NaN 1 Dog BLR 1000.0 NaN 2 Dog DL 2000.0 NaN 3 Cat MH NaN 500...
<p>You can try</p> <pre class="lang-py prettyprint-override"><code>df.loc[df['PET'].eq('Bird'), 'Cost'] = df.loc[df['PET'].eq('Bird'), 'City'].map(df.set_index('City').loc[lambda x: x['PET'].eq('Cat'), 'Expense']) </code></pre> <pre><code>print(df) PET City Cost Expense 0 Dog MH 1500.0 NaN 1 ...
How to insert particular column values to another column particular values in python dataframe
python-3.x|pandas|dataframe|numpy
0
38
1
72,204,556
72,204,556
3
true
2022-05-11T15:58:45.167Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to insert particular column values to another column particular values in python dataframe<p>I have an input dataframe as below: Input df:</p> <pre><code...
72,140,688
How to select multiple elements into array in Linq query?<p>Net core application. I have below query in my application</p> <pre><code> var result = sourceProposal.Quotes .Where(x=&gt;x.QuotationId == sourceQuoteId) .FirstOrDefault() .QuoteLines.Select(x=&gt;(x.Quantity,x.WtgType)).ToArray(); </code><...
<p><a href="https://docs.microsoft.com/en-us/dotnet/api/system.linq.enumerable.select?view=net-6.0#system-linq-enumerable-select-2(system-collections-generic-ienumerable((-0))-system-func((-0-1)))" rel="nofollow noreferrer"><code>Select&lt;TSource,TResult&gt;</code></a> returns enumerable/queryable of the type returned...
How to select multiple elements into array in Linq query?
c#|linq|asp.net-core
0
308
2
72,140,845
72,140,845
3
true
2022-05-06T11:22:30.417Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to select multiple elements into array in Linq query?<p>Net core application. I have below query in my application</p> <pre><code> var result = sourcePr...
72,186,891
SQL Count each occurence of words separated by comma<p>I have a column in a table with words separated by comma. I need to count each occurence of each word<br /> My column looks like : ('a, b, c'), ('a, b, d'), ('b, c, d'), ('a'), ('a, c'); (fiddle at the bottom)</p> <p>Here is what I get :</p> <pre><code>MyCol ...
<p>You are using the wrong column. Simply use the <code>[value]</code> column (returned from the <code>STRING_SPLIT()</code> call) and remove the space characters (using <code>TRIM()</code> for SQL Server 2017+ or <code>LTRIM()</code> and <code>RTRIM()</code> for earlier versions):</p> <pre><code>SELECT TRIM(s.[value])...
SQL Count each occurence of words separated by comma
sql|sql-server|tsql|cross-apply
0
71
4
72,186,995
72,186,995
3
true
2022-05-10T13:05:22.527Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: SQL Count each occurence of words separated by comma<p>I have a column in a table with words separated by comma. I need to count each occurence of each word<...
72,221,921
Error with eslint and vue/comment directive<p>Hello I was just running my website and I have 20 errors like this :</p> <pre class="lang-js prettyprint-override"><code>Module Error (from ./node_modules/eslint-loader/dist/cjs.js): error clear vue/comment-directive </code></pre> <p>Any idea what is the problem here?</p...
<p>Rules that allow eslint to use eslint-disable functionality in the 'template' are included in all eslint plugin.It supports usage of the following comments:</p> <ul> <li>eslint-disable</li> <li>eslint-enable</li> <li>eslint-disable-line</li> <li>eslint-disable-next-line</li> </ul> <p>The error you are getting can b...
Error with eslint and vue/comment directive
vue.js|nuxt.js|eslint
0
445
1
72,238,119
72,238,119
3
true
2022-05-12T20:49:59.410Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Error with eslint and vue/comment directive<p>Hello I was just running my website and I have 20 errors like this :</p> <pre class="lang-js prettyprint-overri...
72,234,036
C++ How to create a constant pointer to a function?<p>I want to have a class with a constant pointer to a function as a member. However, I'm instead creating functions with constant return values (<a href="https://stackoverflow.com/questions/8716330/purpose-of-returning-by-const-value">a strange feature I just run into...
<p>Try doing it in steps, it is more readable also,</p> <pre><code> using getValue_ptr_type = ComparableValue (*)(const T&amp;); using const_getValue_ptr_type = const getValue_ptr_type; const_getValue_ptr_type getValue; </code></pre> <p>OR use EAST const (my favorite)</p> <pre><code> Compa...
C++ How to create a constant pointer to a function?
c++|pointers|compiler-errors|constants
0
62
1
72,234,122
72,234,122
3
true
2022-05-13T18:31:09.660Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: C++ How to create a constant pointer to a function?<p>I want to have a class with a constant pointer to a function as a member. However, I'm instead creating...
72,219,622
how do I share a class between ASP .NET and Framework 4.6 applications?<p>I have two projects. One is targeted to Framework 4.6, another to .NET 6.0 When I try to create a reference, compiler produces an error &quot;Project '..\Common\Common.csproj' targets '.NET6.0'. It cannot be referenced by a project that targets '...
<p>You can share a library if you build it for <a href="https://dotnet.microsoft.com/en-us/platform/dotnet-standard" rel="nofollow noreferrer">.NET Standard</a>. To share a .NET Standard 2.0 library you'll need to target at least .NET Framework 4.6.1, which will be fine unless you need to deploy to Windows Vista or Wi...
how do I share a class between ASP .NET and Framework 4.6 applications?
c#|project|share
0
87
1
72,219,685
72,219,685
3
true
2022-05-12T17:06:44.427Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: how do I share a class between ASP .NET and Framework 4.6 applications?<p>I have two projects. One is targeted to Framework 4.6, another to .NET 6.0 When I t...
72,148,769
There is any objective reason why Scala differentiate fold and reduce functions?<p>Reduce can be an override fold that doesn't take the first element. I guess there is an answer to that design decision but I can't find it.</p>
<p>The two operations are fundamentally different. Giving them the same name would be confusing. In <a href="https://ruby-lang.org/" rel="nofollow noreferrer">Ruby</a>, the equivalent method is called <a href="https://ruby-doc.org/core/Enumerable.html#method-i-inject" rel="nofollow noreferrer"><code>Enumerable#inject</...
There is any objective reason why Scala differentiate fold and reduce functions?
scala|functional-programming
0
57
2
72,150,918
72,150,918
3
true
2022-05-07T01:23:04.997Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: There is any objective reason why Scala differentiate fold and reduce functions?<p>Reduce can be an override fold that doesn't take the first element. I gues...
72,225,796
Want some guide about how to use nvjpegEncodeYUV()<p>I am trying to implement some jpeg encoding cuda code based one a sample code below: <a href="https://docs.nvidia.com/cuda/nvjpeg/index.html#nvjpeg-encode-examples" rel="nofollow noreferrer">https://docs.nvidia.com/cuda/nvjpeg/index.html#nvjpeg-encode-examples</a></p...
<p>Based on what I see in your code, I'm guessing your input storage format is <a href="https://www.flir.com/support-center/iis/machine-vision/knowledge-base/understanding-yuv-data-formats/" rel="nofollow noreferrer">ordinary YUV422</a>:</p> <pre><code>U0 Y0 V0 Y1 U2 Y2 V2 Y3 U4 Y4 V4… </code></pre> <p>That is an <stro...
Want some guide about how to use nvjpegEncodeYUV()
encoding|cuda|jpeg
0
161
1
72,242,587
72,242,587
3
true
2022-05-13T07:22:47.453Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Want some guide about how to use nvjpegEncodeYUV()<p>I am trying to implement some jpeg encoding cuda code based one a sample code below: <a href="https://do...
72,229,764
From keyword not found where expected error in oracle<pre><code>Select firstname as name, time as asof, salary as bal into temp employee from people.person p where p.id =1; </code></pre> <p>Need to create a temporary table employee by inserting values from already created table person which belongs to people database b...
<p>You'd then use CTAS (Create Table As Select), not an invalid <code>INTO</code> clause; it is used for different purposes.</p> <pre><code>create table temp_employee as select firstname as name, time as asof, salary as bal from people.person p where p.id = 1; </code></pre> <hr /> <p>Based on co...
From keyword not found where expected error in oracle
sql|oracle|syntax-error|keyword|execution
0
64
1
72,229,808
72,229,808
3
true
2022-05-13T12:39:41.700Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: From keyword not found where expected error in oracle<pre><code>Select firstname as name, time as asof, salary as bal into temp employee from people.person p...
72,155,318
How to hide a menu when clicked on any menu-item?<p>I can not find where is the problem. Any idea about hiding on clicking any menu-item?</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-overr...
<p>You cannot get <code>document.getElementById(&quot;#1&quot;)</code> with <code>#</code>. <code>getElementById</code> is already an id selector, so you don't need to have <code>#</code>.</p> <p><code>menu.style.display</code>, you don't have inline styles for <code>menu</code>, your condition won't pass for the first...
How to hide a menu when clicked on any menu-item?
javascript
0
58
1
72,155,439
72,155,439
3
true
2022-05-07T18:21:54.423Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How to hide a menu when clicked on any menu-item?<p>I can not find where is the problem. Any idea about hiding on clicking any menu-item?</p> <p><div class=...
72,154,903
Using "is" operator to compare two variable types in C#<p>I know that I can easily compare two variable types like this:</p> <pre><code>i.GetType() == i2.GetType()) </code></pre> <p>Also, this kind of comparison works fine:</p> <pre><code>int i = 0; if(i is int){} </code></pre> <p>So, why something like this does not w...
<p>There's a difference between a <em>compile time</em> type (using the type name, like <code>int</code>) and a <em>runtime variable</em> which holds information <em>about</em> a type (a variable of type <code>System.Type</code>, such as what's returned by <code>i2.GetType()</code>). You seem to be confusing those two....
Using "is" operator to compare two variable types in C#
c#|.net|types
0
50
1
72,155,052
72,155,052
3
true
2022-05-07T17:26:32.367Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Using "is" operator to compare two variable types in C#<p>I know that I can easily compare two variable types like this:</p> <pre><code>i.GetType() == i2.Get...
72,151,354
Check duplicate value in localstorage<p>I want to check if a id exist in database it will just simply replace it. When i try to do that it is adding the same id.</p> <pre><code>addEntry = (e,id) =&gt; { e.preventDefault() let product_list = [] let productCost = document.getElementById('projectcost').value; ...
<p>you need to check if the product is already located in <code>localStorage</code> if so get it index and replace it and if not just append it to the <code>product_list</code></p> <p>try this</p> <pre><code>let product_list = [] let productCost = document.getElementById('projectcost').value; let productQty = docum...
Check duplicate value in localstorage
javascript|local-storage
0
73
2
72,151,622
72,151,622
3
true
2022-05-07T09:47:32.787Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Check duplicate value in localstorage<p>I want to check if a id exist in database it will just simply replace it. When i try to do that it is adding the same...
72,173,275
get number then get n names and count each word vowel char JS<p>The goal is to get a number n from the user then get n words from the user and show each word vowel char count in the console. But it doesn't get the counts correct. #JS #vowel</p> <pre><code>let n = prompt('Enter the number:'); let wordList = []; let vow...
<p>remove the carrot symbol from the regex and try:</p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>function getVowels(str) { var m = str.toString().match(/[aeiou]/gi); ...
get number then get n names and count each word vowel char JS
javascript
0
29
2
72,173,377
72,173,377
3
true
2022-05-09T14:03:31.227Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: get number then get n names and count each word vowel char JS<p>The goal is to get a number n from the user then get n words from the user and show each word...
72,158,133
How can I Define an Async Action in c#?<p>I really want to know if there is a way to define action variables <code>async</code>? Or some alternative method?</p> <pre><code>public System.Action myAction; public async System.Action myAsyncAction; void Start() { // normal action myAction += () =&gt; { ...
<p>I've used <code>Func&lt;Task&gt;</code> in the past. EG:</p> <pre class="lang-cs prettyprint-override"><code>Func&lt;Task&gt; asyncMethod = async () =&gt; { await Task.Delay(1000); Console.WriteLine(&quot;done here&quot;); }; await asyncMethod(); </code></pre>
How can I Define an Async Action in c#?
c#|asynchronous|async-await|delegates|action
0
79
1
72,158,166
72,158,166
3
true
2022-05-08T04:46:20.537Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How can I Define an Async Action in c#?<p>I really want to know if there is a way to define action variables <code>async</code>? Or some alternative method?<...
72,206,121
How can I set a flash variable in Next.js before a redirect?<p>Laravel in PHP made this easy with <a href="https://laravel.com/docs/9.x/session#flash-data" rel="nofollow noreferrer">https://laravel.com/docs/9.x/session#flash-data</a>, so I figured Next.js would have an easy way too.</p> <p>I thought I'd be able to do s...
<p>Your first code is working fine for me (printing the headers in terminal). However, the combination will not work as intended because the headers you set in <code>/foo</code> (say) will be sent to browser, along with a status code of 307, and a location header of <code>/</code>. Now &quot;the browser&quot; will be r...
How can I set a flash variable in Next.js before a redirect?
node.js|redirect|next.js|http-headers|session-variables
0
518
1
72,210,574
72,210,574
3
true
2022-05-11T18:44:21.920Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: How can I set a flash variable in Next.js before a redirect?<p>Laravel in PHP made this easy with <a href="https://laravel.com/docs/9.x/session#flash-data" r...
72,167,682
Vuetify v-btn how to remove follow up slot span tag<p>I'm trying to <strong>remove the span tag</strong> which follow up in the <strong>v-btn component provided by Vuetify</strong>, that is <strong>getting in the way of tracking</strong> via HTML id attributes in analytics</p> <p>Code provided below using UI component ...
<p>The <code>V-Btn</code> component have a <code>genContent</code> function implementation which will be invoked to generate the child elements while rendering the root component. By default it provides the following <a href="https://github.com/vuetifyjs/vuetify/blob/master/packages/vuetify/src/components/VBtn/VBtn.ts#...
Vuetify v-btn how to remove follow up slot span tag
vue.js|vuetify.js|vue-slot|v-btn
0
135
1
72,168,117
72,168,117
3
true
2022-05-09T06:19:47.433Z
Please answer the following Stackoverflow question on Programming. Answer it like you are a developer answering Stackoverflow questions. Stackoverflow question: Vuetify v-btn how to remove follow up slot span tag<p>I'm trying to <strong>remove the span tag</strong> which follow up in the <strong>v-btn component provi...