id int64 4 73.8M | title stringlengths 10 150 | body stringlengths 17 50.8k | accepted_answer_id int64 7 73.8M | answer_count int64 1 182 | comment_count int64 0 89 | community_owned_date stringlengths 23 27 ⌀ | creation_date stringlengths 23 27 | favorite_count int64 0 11.6k ⌀ | last_activity_date stringlengths 23 27 | last_edit_date stringlengths 23 27 ⌀ | last_editor_display_name stringlengths 2 29 ⌀ | last_editor_user_id int64 -1 20M ⌀ | owner_display_name stringlengths 1 29 ⌀ | owner_user_id int64 1 20M ⌀ | parent_id null | post_type_id int64 1 1 | score int64 -146 26.6k | tags stringlengths 1 125 | view_count int64 122 11.6M | answer_body stringlengths 19 51k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5,205,373 | Understanding basic Java-specific interverview questions | <p>Last day I faced an interview and they asked me java questions among which for some questions I didn't know the answer. I am curious to know the answer for that question. Interviewer did not tell me the answer. I am asking that questions here:</p>
<ul>
<li>Does Java provide any construct to find out the size of an ... | 5,205,525 | 8 | 2 | null | 2011-03-05 17:13:51.76 UTC | 11 | 2011-03-05 17:54:58.51 UTC | 2011-03-05 17:25:03.573 UTC | user166390 | null | null | 559,070 | null | 1 | 7 | java | 1,549 | <p>I think that all of these can be answered by searching for existing Stack Overflow questions. The reason I think it's worth answering this question with links to previous answers is that you've asked about a lot of different issues, each one of which is interesting in its own right. It's not so likely you'll get a... |
5,200,269 | List of running JVMs on the localhost | <p>How to get in Java 6+ the list of running JVMs on the localhost and their specs (i.e. Java version, running threads, etc.)?</p>
<p>Does the Java API provide such features? Is there a Java library that can do this?</p> | 5,200,305 | 8 | 1 | null | 2011-03-04 23:07:52.52 UTC | 10 | 2017-10-19 01:24:04.173 UTC | null | null | null | null | 645,535 | null | 1 | 14 | java | 32,754 | <p>You can use <a href="http://download.oracle.com/javase/1.5.0/docs/tooldocs/share/jps.html" rel="noreferrer"><code>jps</code></a>, a command-line tool distributed with the jvm. I'm not aware of any normal Java API for it, though. However, JConsole can do what you ask, so I had a look at its source. It was quite sc... |
4,939,382 | Logging POST data from $request_body | <p>I have my config setup to handle a bunch of GET requests which render pixels that work fine to handle analytics and parse query strings for logging. With an additional third party data stream, I need to handle a POST request to a given url that has JSON in an expected loggable format inside of it's request body. I d... | 7,473,603 | 8 | 2 | null | 2011-02-08 22:44:24.063 UTC | 37 | 2022-03-15 09:03:47.803 UTC | 2016-08-24 18:28:14.97 UTC | null | 334,831 | null | 519,311 | null | 1 | 89 | logging|nginx|http-post | 228,565 | <p>This solution works like a charm:</p>
<pre><code>http {
log_format postdata $request_body;
server {
location = /post.php {
access_log /var/log/nginx/postdata.log postdata;
fastcgi_pass php_cgi;
}
}
}
</code></pre>
<p>I think the trick is making nginx believe that you w... |
5,596,521 | What is the correct way to start a mongod service on linux / OS X? | <p>I've installed mongodb and have been able to run it, work with it, do simple DB read / write type stuff. Now I'm trying to set up my Mac to run mongod as a service.</p>
<p>I get "Command not found" in response to: </p>
<pre><code> init mongod start
</code></pre>
<p>In response to: </p>
<pre><code>~: service mon... | 5,601,077 | 11 | 2 | null | 2011-04-08 14:24:02.917 UTC | 66 | 2020-06-07 19:19:22.4 UTC | null | null | null | null | 398,055 | null | 1 | 141 | linux|mongodb|service|initialization | 142,301 | <p>With recent builds of mongodb community edition, this is straightforward.</p>
<p>When you install via brew, it tells you what exactly to do. There is no need to create a new launch control file.</p>
<pre><code>$ brew install mongodb
==> Downloading https://homebrew.bintray.com/bottles/mongodb-3.0.6.yosemite.bot... |
16,965,011 | Append text to each row of the sql select query | <p>I have a query like this</p>
<pre><code>SELECT COUNT(ID) 'Records Affected', TYPE FROM MASTER
GROUP BY TYPE
</code></pre>
<p>The output for this is</p>
<pre><code>Records Affected TYPE
---------------- ----
4 F1
3 F2
5 ... | 16,965,134 | 5 | 3 | null | 2013-06-06 14:38:56.21 UTC | 3 | 2016-12-23 05:22:31.02 UTC | 2013-06-06 14:53:58.25 UTC | null | 1,572,750 | null | 1,407,900 | null | 1 | 8 | sql-server-2008 | 79,720 | <p>You can easily concatenate the string using the following. You will use the <code>+</code> to concatenate the string to the <code>type</code> column and the <code>count</code>. Note, the <code>count</code> needs to be converted to a <code>varchar</code> for this to work:</p>
<pre><code>SELECT
'The number of rec... |
66,429,202 | What are production use cases for the useRef, useMemo, useCallback hooks? | <p>Outside of the <strong>counter</strong> example seen in many YouTube tutorial videos, what are <strong>practical/real-world</strong> use cases for <code>useMemo</code> and <code>useCallback</code>?</p>
<p>Also, I've only seen an <strong>input focus</strong> example for the <code>useRef</code> hook.</p>
<p>Please sha... | 66,626,493 | 3 | 9 | null | 2021-03-01 20:29:32.55 UTC | 15 | 2022-01-22 13:26:17 UTC | 2021-03-14 16:05:51.563 UTC | null | 2,873,538 | null | 6,388,443 | null | 1 | 10 | reactjs|react-hooks|use-ref|usecallback|react-usememo | 14,406 | <h2><code>useRef</code>:</h2>
<p><strong>Syntax:</strong> <code>const refObject = useRef(initialValue);</code></p>
<p>It simply returns a plain JavaScript <strong>object</strong>. Its value can be accessed and modified (<strong>mutability</strong>) as many times as you need without worrying about "rerender".<... |
41,240,414 | Equivalent of Scala's foldLeft in Java 8 | <p>What is the equivalent of of Scala's great <code>foldLeft</code> in Java 8?</p>
<p>I was tempted to think it was <code>reduce</code>, but reduce has to return something of identical type to what it reduces on. </p>
<p>Example:</p>
<pre><code>import java.util.List;
public class Foo {
// this method works pre... | 41,240,645 | 5 | 4 | null | 2016-12-20 10:43:09.973 UTC | 6 | 2021-05-14 10:02:43.493 UTC | 2017-10-17 09:48:00.517 UTC | null | 3,975,247 | null | 3,975,247 | null | 1 | 33 | java|java-8|reduce|foldleft | 29,711 | <p><strong>Update:</strong> </p>
<p>Here is initial attempt to get your code fixed:</p>
<pre><code>public static String concatenate(List<Character> chars) {
return chars
.stream()
.reduce(new StringBuilder(),
StringBuilder::append,
... |
12,274,628 | Compile a referenced LESS file into CSS with PHP automatically | <p>I want the following things to occur:</p>
<ol>
<li><p>Have the process automated server side.</p></li>
<li><p>Simply be able to reference the LESS file as I would a CSS file in my code.</p></li>
<li><p>The user is returned minified CSS instead of the LESS file - cached so the compiler doesn't need to run unless the... | 12,274,629 | 1 | 0 | null | 2012-09-05 04:47:47.82 UTC | 12 | 2013-09-03 13:06:11.127 UTC | 2013-09-03 13:06:11.127 UTC | null | 1,455,709 | null | 1,455,709 | null | 1 | 11 | php|css|caching|compiler-construction|less | 7,485 | <p><strong>THIS ASSUMES LESSPHP v0.3.8+</strong> Unsure about earlier versions, but you'll get the gist of how it works if it doesn't straight out of the box.</p>
<p><code><link rel="stylesheet" type="text/css" href="styles/main.less" /></code></p>
<p>If you were using less.js to compile client side, make sure ... |
12,136,841 | AVMutableVideoComposition rotated video captured in portrait mode | <p>I have used below code to add image overlay over video and then export the new generated video to document directory. But strangely,video gets rotated by 90 degrees. </p>
<pre><code>- (void)buildTransitionComposition:(AVMutableComposition *)composition andVideoComposition:(AVMutableVideoComposition *)videoCompositi... | 12,136,925 | 6 | 0 | null | 2012-08-27 05:56:24.617 UTC | 11 | 2020-10-21 13:00:00.82 UTC | null | null | null | null | 1,400,442 | null | 1 | 18 | iphone|ios|avmutablecomposition | 19,672 | <p>By default, when you export video using <strong>AVAssetExportSession</strong> then video will be rotated from its original orientation. You have to apply its transform to set it exact orientation.You please try below code to do the same.</p>
<pre><code>- (AVMutableVideoCompositionLayerInstruction *)layerInstruction... |
12,406,032 | get fraction part of a decimal number | <p>I am trying to get a fraction part of a decimal number in rails. For example I have a number, that "1.23" and I want to get "23" It is may be too easy but, does anyone have any idea about how can I do?</p> | 12,406,132 | 9 | 0 | null | 2012-09-13 12:16:05.27 UTC | 2 | 2020-04-26 06:28:24.637 UTC | 2016-08-18 02:06:35.193 UTC | null | 2,387,599 | null | 883,906 | null | 1 | 33 | ruby-on-rails|ruby|ruby-on-rails-3 | 22,197 | <p>I am not sure if it is the easiest way to do it - but you can simply split the number using "." character - like this:</p>
<pre><code>number = 1.23
parts = number.to_s.split(".")
result = parts.count > 1 ? parts[1].to_s : 0
</code></pre> |
3,387,191 | Python csv without header | <p>With header information in csv file, city can be grabbed as:</p>
<pre><code>city = row['city']
</code></pre>
<p>Now how to assume that csv file does not have headers, there is only 1 column, and column is city.</p> | 3,387,212 | 3 | 1 | null | 2010-08-02 11:16:50.277 UTC | 4 | 2018-06-26 14:11:14.44 UTC | null | null | null | null | 347,039 | null | 1 | 27 | python|csv | 81,145 | <p>You can still use your line, if you declare the headers yourself, since you know it:</p>
<pre><code>with open('data.csv') as f:
cf = csv.DictReader(f, fieldnames=['city'])
for row in cf:
print row['city']
</code></pre>
<p>For more information check <a href="http://docs.python.org/library/csv#csv.Di... |
22,597,781 | An Android Virtual Device that failed to load | <p>Note: this question is very similar to another question posed much earlier by another person, but does not solve my problem. (<em>not</em> the same question <a href="https://stackoverflow.com/questions/15749711/an-android-virtual-device-that-failed-to-load-click-details-to-see-the-error">here</a>)</p>
<p>Situation:... | 25,505,963 | 2 | 10 | null | 2014-03-23 22:07:45.063 UTC | 5 | 2016-01-04 10:24:38.583 UTC | 2017-05-23 12:25:43.357 UTC | null | -1 | user3453166 | null | null | 1 | 12 | android|eclipse|avd | 69,716 | <p>Forgot to re-post this answer that I put in the comments section of my original post chain.</p>
<p><strong>solution:</strong> was HAX allocation. Solution can be found in the following <a href="http://youtube.com/watch?v=tXnm8Lsl-dg" rel="nofollow">video</a>.</p> |
18,840,422 | Do negative numbers return false in C/C++? | <p>When evaluating integers as booleans in C/C++, are negative numbers true or false? Are they always true/false regardless of compilers?</p> | 18,840,449 | 5 | 9 | null | 2013-09-17 02:36:54.167 UTC | 21 | 2019-07-27 20:04:31.64 UTC | null | null | null | null | 2,453,816 | null | 1 | 62 | c++|c|boolean | 73,548 | <p>All non-zero values will be converted to <code>true</code>, and zero values to <code>false</code>. With negative numbers being non-zero, they are converted to <code>true</code>.</p>
<p>Quoting from the C++11 standard (emphasis mine):</p>
<blockquote>
<p>4.12 Boolean conversions [conv.bool]</p>
<p>1 A prvalu... |
20,731,402 | Animated (Smooth) scrolling on ScrollViewer | <p>I have a <code>ScrollViewer</code> in my WPF App, and I want it to have smooth/animated scrolling effect just like <em>Firefox</em> has (if you know what I am talking about).</p>
<p>I tried to search over the internet, and the only thing I've found is this:<br/></p>
<p><a href="http://matthiasshapiro.com/DisneySh... | 20,846,310 | 4 | 3 | null | 2013-12-22 16:17:20.387 UTC | 22 | 2022-01-11 21:39:40.99 UTC | 2019-07-31 10:50:17.91 UTC | null | 5,955,233 | null | 519,002 | null | 1 | 36 | wpf|animation|scrollviewer | 26,329 | <p>In your example there are two controls inherited from <code>ScrollViewer</code> and <code>ListBox</code>, the animation is implemented by <code>SplineDoubleKeyFrame</code> <a href="http://msdn.microsoft.com/en-us/library/system.windows.media.animation.splinedoublekeyframe%28v=vs.110%29.aspx" rel="noreferrer">[MSDN]<... |
22,138,475 | How to implement the same interface multiple times, but with different generics? | <p>I have the following interface, which I want to implement multiple times in my classes:</p>
<pre><code>public interface EventListener<T extends Event>
{
public void onEvent(T event);
}
</code></pre>
<p>Now, I want to be able to implement this interface in the following way:</p>
<pre><code>class Foo impl... | 22,138,640 | 3 | 5 | null | 2014-03-03 04:04:35.497 UTC | 8 | 2020-02-19 10:55:30.55 UTC | null | null | null | null | 49,153 | null | 1 | 44 | java|generics|interface | 20,537 | <p>You need to use inner or anonymous classes. For instance:</p>
<pre><code>class Foo {
public EventListener<X> asXListener() {
return new EventListener<X>() {
// code here can refer to Foo
};
}
public EventListener<Y> asYListener() {
return new EventListener<... |
11,134,857 | Using sendmail for HTML body and binary attachment | <p>Objective: To send mail (using sendmail) with HTML body and binary attachment.</p>
<p>Followed the guidelines specified in the following links</p>
<p><a href="http://www.unix.com/shell-programming-scripting/159522-sendmail-html-body-attachment-2.html">http://www.unix.com/shell-programming-scripting/159522-sendmail... | 11,725,308 | 2 | 3 | null | 2012-06-21 09:04:23.627 UTC | 3 | 2021-01-15 09:23:02.97 UTC | null | null | null | null | 1,471,464 | null | 1 | 10 | shell|unix|sendmail|ksh|uuencode | 40,910 | <p>Changing the Content transfer encoding type within the email from base64 to uuencode resolved the issue.
Thanks for the inputs so far.</p>
<p>Given below is the revised script that works.</p>
<pre><code>#!/usr/bin/ksh
export MAILFROM="noreply@domain.com"
export MAILTO="mail.to@gmail.com"
export SUBJECT="Test PDF ... |
11,220,776 | deserialize list of objects using json.net | <p>i have this class</p>
<pre><code>public class Image
{
public string url { get; set; }
public string url_40px { get; set; }
public string url_50px { get; set; }
}
public class Category
{
public List<int> ancestor_ids { get; set; }
public int parent_id { get; set; }
public List<objec... | 11,220,872 | 1 | 1 | null | 2012-06-27 06:47:05.437 UTC | 1 | 2021-02-22 16:31:41.26 UTC | 2012-11-13 21:39:58.7 UTC | null | 11,829 | null | 362,461 | null | 1 | 11 | .net|json|deserialization|json.net | 39,056 | <p>The type parameter for <code>DeserializeObject</code> has to be <code>List<Category></code> instead of <code>Category</code>.</p>
<p>In C# it would be <code>JsonConvert.DeserializeObject<List<Category>>(json)</code></p>
<p>And In VB.Net it would be <code>JsonConvert.DeserializeObject(Of List(Of Cat... |
11,386,033 | GNU Octave, round a number to units precision | <p>In GNU Octave version 3.4.3 I want to round a matrix to 2 units precision on the contents of a matrix like this.</p>
<pre><code>mymatrix=[1.1234567, 2.12345; 3.1234567891, 4.1234];
disp(mymatrix);
</code></pre>
<p>This prints:</p>
<pre><code>1.1235 2.1235
3.1235 4.1234
</code></pre>
<p>As you can see, the di... | 11,386,211 | 3 | 0 | null | 2012-07-08 19:33:16.603 UTC | 2 | 2021-01-04 20:33:41.307 UTC | null | null | null | null | 445,131 | null | 1 | 17 | linux|matrix|rounding|precision|octave | 48,897 | <h2>How to round off elements in a matrix in Octave:</h2>
<p>There are many different ways to round a matrix and round a number in octave.</p>
<h2>Option 1, use of sprintf format feature</h2>
<pre><code>mymatrix=[100.1234567, 2.12345; 3.1234567891, 4.1234];
rows = rows(mymatrix);
cols = columns(mymatrix);
for i = 1:row... |
11,190,405 | How to schedule a task wether the user is logged on or not in PowerShell? | <p>I have a problem regarding how to make a scheduled task to run whether the user is logged on or not. It must be done in PowerShell. What I have done is:</p>
<pre><code>$WINDIR/system32/schtasks.exe /create /tn TaskName /sc daily /st 15:05:00 /tr "C:\cygwin\opt\IBM\tpchc\bin\tools\TheFileToRun.bat"
</code><... | 11,196,228 | 3 | 1 | null | 2012-06-25 13:37:55.997 UTC | 4 | 2022-08-03 15:49:19.917 UTC | 2022-08-03 15:49:19.917 UTC | null | 2,756,409 | null | 1,093,774 | null | 1 | 21 | powershell|shell|cmd | 41,694 | <p>You'll need to specify a user (like <code>/RU system</code>), but it should be the default whether to run logged in or not. You can look at <a href="http://msdn.microsoft.com/en-us/library/windows/desktop/bb736357%28v=vs.85%29.aspx" rel="noreferrer">this link</a> for a list of all <code>schtasks.exe</code> parameter... |
10,968,522 | Excluding fields in JAXB | <p>I have 2 classes:</p>
<pre><code>@XmlRootElement
public class A {
private Long id;
private B b;
// setters and getters
}
</code></pre>
<p>and</p>
<pre><code>@XmlRootElement
public class B {
private Long id;
private String field1;
private String field2;
// setters and getters
}
</co... | 10,969,031 | 3 | 0 | null | 2012-06-10 12:05:09.167 UTC | 7 | 2019-08-20 07:29:36.12 UTC | 2015-08-28 12:40:01.18 UTC | null | 1,743,880 | null | 920,607 | null | 1 | 47 | java|xml|jaxb|java-ee-6 | 67,467 | <p>You can use <a href="https://docs.oracle.com/javase/8/docs/api/javax/xml/bind/annotation/XmlTransient.html" rel="noreferrer"><code>@XmlTransient</code></a> on the field. Also the default JAXB bindings can be overridden at a global scope or on a case-by-case basis as needed by using <a href="http://docs.oracle.com/cd... |
11,079,605 | adapter-Any real example of Adapter Pattern | <p>I want to demonstrate use of <a href="https://en.wikipedia.org/wiki/Adapter_pattern" rel="noreferrer">Adapter Pattern</a> to my team. I've read many books and articles online. Everyone is citing an example which are useful to understand the concept (Shape, Memory Card, Electronic Adapter etc.), but there is no real ... | 13,323,703 | 15 | 8 | null | 2012-06-18 08:55:29.033 UTC | 43 | 2021-02-09 18:34:43.473 UTC | 2016-02-10 13:29:34.22 UTC | null | 634,576 | null | 855,239 | null | 1 | 94 | oop|design-patterns|adapter|software-design | 66,636 | <p>Many examples of Adapter are trivial or unrealistic (<a href="http://www.vincehuston.org/dp/adapter.html" rel="noreferrer">Rectangle vs. LegacyRectangle, Ratchet vs. Socket</a>, <a href="http://userpages.umbc.edu/~tarr/dp/lectures/Adapter-2pp.pdf" rel="noreferrer">SquarePeg vs RoundPeg</a>, <a href="http://my.safari... |
12,719,241 | Alternatives to CKEditor for WSYIWYG text area editor | <p>Me and my company are looking for an alternative to CKEditor to use in our CMS. Preferably we would like something a bit more up to date and significantly more lightweight.</p>
<p>We're a rails 3.2 shop, so something that integrates easily with rails would be nice.</p>
<p>Really we are just looking for the formatt... | 12,719,274 | 4 | 4 | null | 2012-10-04 01:39:41.86 UTC | 11 | 2014-12-09 18:55:20.993 UTC | null | null | null | null | 117,554 | null | 1 | 32 | javascript|jquery|ruby-on-rails|ruby-on-rails-3|wysiwyg | 49,200 | <p>I just found: </p>
<p><a href="http://redactorjs.com/" rel="noreferrer">http://redactorjs.com/</a></p>
<p><a href="http://aloha-editor.org/" rel="noreferrer">http://aloha-editor.org/</a></p>
<p><a href="https://github.com/xing/wysihtml5" rel="noreferrer">https://github.com/xing/wysihtml5</a></p>
<p><a href="http... |
12,768,176 | Unicode Characters in ggplot2 PDF Output | <p>How can I use Unicode characters for labels, titles and similar things in a PDF plot created with ggplot2?</p>
<p>Consider the following example:</p>
<pre><code>library(ggplot2)
qplot(Sepal.Length, Petal.Length, data=iris, main="Aʙᴄᴅᴇғɢʜɪᴊᴋʟᴍɴᴏᴘǫʀsᴛᴜᴠᴡxʏᴢ")
ggsave("t.pdf")
</code></pre>
<p>The title of the plot u... | 12,775,087 | 3 | 1 | null | 2012-10-07 10:55:24.12 UTC | 10 | 2020-10-21 23:15:43.55 UTC | 2017-05-23 12:02:11.54 UTC | null | -1 | null | 1,685,720 | null | 1 | 34 | r|unicode|utf-8|ggplot2 | 15,395 | <p>As Ben suggested, <code>cairo_pdf()</code> is your friend. It also allows you to embed non-postscript fonts (i.e. TTF/OTF) in the PDF via the <code>family</code> argument (crucial if you don't happen to have any postscript fonts that contain the glyphs you want to use). For example:</p>
<pre><code>library(ggplot2)... |
16,878,279 | overflow:hidden ignored with border-radius and CSS transforms (webkit only) | <p>I want to have a square image inside a circle.</p>
<p>When the user hovers over the image, the image should scale (zoom in).</p>
<p>The circle should remain the same size.</p>
<p>Only during the CSS transition, the square image overlaps the circle (as if overflow:hidden weren't there at all).</p>
<p>Here's a dem... | 16,878,347 | 4 | 0 | null | 2013-06-01 23:28:06.783 UTC | 12 | 2017-05-17 06:27:05.277 UTC | 2013-06-01 23:55:04.143 UTC | null | 850,825 | null | 850,825 | null | 1 | 21 | css|css-transitions|css-transforms | 15,542 | <p>I removed some superfluous markup (the circle and square containers... only needs one) and styled the img itself:</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-css lang-css prettyprint-override"><code>#wrapper... |
17,117,589 | How can I skip tests in maven install goal, while running them in maven test goal? | <p>I have a multi-module maven project with both integration and unit tests in the same folder (src/test/java). Integration tests are marked with <code>@Category(IntegrationTest.class)</code>. I want to end up with the following setup:</p>
<ol>
<li>If I run <code>mvn install</code>, I want all tests to compile, but I ... | 17,123,957 | 7 | 2 | null | 2013-06-14 21:31:29.2 UTC | 43 | 2019-05-01 17:41:35.27 UTC | 2013-06-15 07:51:11.453 UTC | null | 1,204,246 | null | 1,204,246 | null | 1 | 69 | maven|integration-testing|maven-surefire-plugin|maven-failsafe-plugin | 92,512 | <p>It sounds like you didn't understand the concept of the <a href="http://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html" rel="noreferrer">build life-cycle</a> in Maven. If you run <code>mvn install</code> all life-cycle phases (including the <code>install</code> phase itself) run before the i... |
10,198,046 | C++ Member Variables | <p>Consider the following class:</p>
<pre><code>class A
{
A();
int number;
void setNumber(int number);
};
</code></pre>
<p>You could implement 'setNumber' in 3 ways:</p>
<p><strong>Method 1</strong>: Use the 'this' pointer.</p>
<pre><code>void A::setNumber(int number)
{
this->number = number;
}
</code></... | 10,198,598 | 6 | 4 | null | 2012-04-17 19:44:35.753 UTC | 5 | 2018-01-31 05:35:00.677 UTC | 2015-05-07 18:50:30.89 UTC | null | 445,131 | null | 1,339,615 | null | 1 | 21 | c++|class|variables|scope|member | 51,179 | <p>This is mostly a personal preference, but let me share my perspective on the issue from inside a company where many small games are being made simultaneously (and so there are many coding styles being used around me).</p>
<p>This link has several good, related, answers: <a href="https://stackoverflow.com/questions/... |
9,698,059 | Disable single javascript file with addon or extension | <p>I am looking for a Firefox addon or Chrome extension that would allow me to disable particular javascript file from running. There are many of those for disabling particular CSS file, cannot seem to find one that does the same with JS files. Is there some limitations or I should have searched better before posting?<... | 9,699,252 | 3 | 0 | null | 2012-03-14 08:14:47.69 UTC | 12 | 2015-12-28 14:15:32.647 UTC | null | null | null | null | 136,055 | null | 1 | 27 | firefox|google-chrome|google-chrome-extension|firefox-addon | 36,557 | <p>AdBlock for Chrome can be used to block JS files.....<br>
<a href="https://chrome.google.com/webstore/detail/gighmmpiobklfepjocnamgkkbiglidom" rel="noreferrer">https://chrome.google.com/webstore/detail/gighmmpiobklfepjocnamgkkbiglidom</a><br>
...Click on the AdBlock icon and select "Show the resource list" and look ... |
9,760,662 | Is there a constant which defines the max value of long or integer? | <p>In java, there is a constant for the max value of Long.
Such as:</p>
<pre><code>long minBillId = Long.MAX_VALUE
</code></pre>
<p>Is there a constant for the max value of long or int in Obj-C?</p> | 9,760,691 | 3 | 0 | null | 2012-03-18 17:49:03.16 UTC | 11 | 2012-12-24 13:21:37.503 UTC | 2012-12-24 13:21:37.503 UTC | null | 775,184 | null | 1,053,236 | null | 1 | 32 | iphone|objective-c|ios|c|ipad | 25,173 | <p>If you import <code>limits.h</code>
you can call <code>LONG_MAX</code></p>
<p>For reference this <a href="http://reference.jumpingmonkey.org/programming_languages/objective-c/types.html" rel="noreferrer">site</a> shows how to get the max for all types as such:</p>
<pre><code>#import <limits.h>
// ...
NSLog... |
10,014,165 | Sublime Text 2 Code Formatting | <p>First let me say I come from a Microsoft background and Visual Studio is my bread and butter. It has a command (keybind is arbitrary) that auto-formats <em>any</em> code syntax. The same command works in HTML, CSS, Javascript, C#, etc. </p>
<p>I have tried plugins for ST2 and so far I've found most don't work on... | 10,299,234 | 4 | 0 | null | 2012-04-04 15:20:49.963 UTC | 25 | 2017-08-01 18:44:53.757 UTC | 2013-10-30 23:08:23.3 UTC | null | 803,739 | null | 803,739 | null | 1 | 54 | sublimetext|prettify|sublimetext2 | 123,366 | <p>I can't speak for the 2nd or 3rd, but if you install Node first, Sublime-HTMLPrettify works pretty well. You have to setup your own key shortcut once it is installed. One thing I noticed on Windows, you may need to edit your path for Node in the %PATH% variable if it is already long (I think the limit is 1024 for ... |
10,236,953 | The Pause monad | <p>Monads can do many amazing, crazy things. They can create variables which hold a superposition of values. They can allow you to access data from the future before you compute it. They can allow you to write destructive updates, but not really. And then the continuation monad allows you to <em>break people's minds!</... | 10,237,311 | 6 | 6 | null | 2012-04-19 21:20:14.683 UTC | 48 | 2015-03-05 09:40:51.653 UTC | 2015-03-05 09:40:51.653 UTC | null | 412,549 | null | 1,006,010 | null | 1 | 72 | haskell|monads|coroutine|monad-transformers|free-monad | 6,174 | <p>Sure; you just let any computation either finish with a result, or suspend itself, giving an action to be used on resume, along with the state at the time:</p>
<pre><code>data Pause s a = Pause { runPause :: s -> (PauseResult s a, s) }
data PauseResult s a
= Done a
| Suspend (Pause s a)
instance Monad ... |
7,983,076 | Is it safe to use anchor to submit form? | <p>I've read somewhere, that using anchor tag to submit a form isn't very safe, so that's my question: Is it safe, to use anchor tag instead of <code><button></code> or <code><input type="submit" /></code> to submit a form? And if it isn't, <strong>why</strong>? The problem is, that I have a CSS class for a... | 7,983,093 | 3 | 2 | null | 2011-11-02 15:37:28.027 UTC | 10 | 2018-05-27 14:08:18.99 UTC | null | null | null | null | 954,930 | null | 1 | 42 | html|forms|button|anchor | 81,783 | <p>To use an anchor to submit a form would require the use of JavaScript to hook up the events. It's not safe in that if a user has JavaScript disabled, you won't be able to submit the form. For example:</p>
<pre><code><form id="form1" action="" method="post">
<a href="#" onclick="document.getElementById(... |
11,562,617 | Installing Zend Framework 2 on XAMPP in Windows | <p>I know this question may have appeared few times here and in the internet. But still I feel it is not clear for somebody who wanted to enter into the world of frameworks. I have followed these links <a href="http://akrabat.com/zend-framework-2-tutorial/">Rob Allens Tutorial</a>, <a href="http://packages.zendframewor... | 11,573,278 | 4 | 0 | null | 2012-07-19 14:05:42.643 UTC | 13 | 2015-12-25 06:12:30.707 UTC | null | null | null | null | 809,901 | null | 1 | 21 | windows|xampp|zend-framework2 | 44,661 | <p>For future references, i also made a big post on how to install ZF2 on a windows xampp environment right here <a href="http://samminds.com/2012/07/zend-framework-2-installation-on-xampp-for-windows/" rel="noreferrer" title="Install Zend Framework 2 on Windows Xampp">Install ZF2 on Windows Xampp</a></p>
<p>OK, i hav... |
11,801,200 | What is mass-assignment in Rails 3 | <p>I have heard couple of people complaining and posting questions about mass-assignment in Rails. I have got same error couple of times and all I did was <code>attr_accessible</code>. But what exactly is mass assignment? could somebody explain with example?</p> | 11,801,261 | 1 | 2 | null | 2012-08-03 18:20:33.29 UTC | 13 | 2012-08-03 18:38:09.63 UTC | null | null | null | null | 1,033,503 | null | 1 | 23 | ruby-on-rails-3|activerecord|mass-assignment | 11,835 | <p><a href="http://guides.rubyonrails.org/security.html#mass-assignment">Mass Assignment</a> is the name Rails gives to the act of constructing your object with a parameters hash. It is "mass assignment" in that you are assigning multiple values to attributes via a single assignment operator.</p>
<p>The following snip... |
11,769,555 | Regular expression to match a backslash followed by a quote | <p>How to write a regular expression to match this <code>\"</code> (a backslash then a quote)? Assume I have a string like this:</p>
<pre><code><a href=\"google.com\"> click to search </a>
</code></pre>
<p>I need to replace all the <code>\"</code> with a <code>"</code>, so the resul... | 11,769,570 | 3 | 3 | null | 2012-08-02 00:43:03.223 UTC | 13 | 2022-01-17 15:56:49.673 UTC | 2022-01-17 15:56:49.673 UTC | null | 466,862 | null | 1,570,058 | null | 1 | 26 | java|regex | 62,084 | <p>If you <em><strong>don't need any of regex mechanisms like predefined character classes \d, quantifiers etc.</strong></em> instead of <code>replaceAll</code> which expects regex use <code>replace</code> which expects literals</p>
<pre><code>str = str.replace("\\\"","\"");
</code></pre>
... |
11,892,928 | CoreData could not fulfill a fault for | <p>I have a really annoying problem, which I just can't seem to get fixed. </p>
<p>I have a view when I send a message that gets saved to the Core Data, when thats done it asked the database for a random message (sentence) and saved that as well to an other row in the database.</p>
<p>If I do the last part hardcoded,... | 11,934,958 | 5 | 14 | null | 2012-08-09 22:29:36.653 UTC | 15 | 2017-07-07 02:56:27.45 UTC | 2012-08-13 07:12:48.253 UTC | null | 406,677 | null | 406,677 | null | 1 | 34 | objective-c|ios|core-data|nsmanagedobject|nsmanagedobjectcontext | 33,572 | <p>It is not really conceptually possible to "<em>save</em>" Core Data objects "<em>in different rows</em>". Remember, Core Data is an object graph and not a database. </p>
<p>If you want to "relocate" your sentence, the best way is to destroy it and recreate it. If you want to keep the old instance, just create a new... |
11,917,708 | How to pipe multiple commands into a single command in the shell? (sh, bash, ...) | <p>How can I pipe the stdout of multiple commands to a single command? </p>
<p>Example 1: combine and sort the output of all three echo commands:</p>
<pre><code>echo zzz; echo aaa; echo kkk
</code></pre>
<p>desired output:</p>
<pre><code>aaa
kkk
zzz
</code></pre>
<p>Example 2: rewrite the following so that all th... | 11,917,709 | 3 | 0 | null | 2012-08-11 21:13:04.08 UTC | 13 | 2022-09-13 14:39:12.18 UTC | 2022-09-13 14:39:12.18 UTC | null | 875,915 | null | 875,915 | null | 1 | 71 | bash|shell|process|pipe|subshell | 65,685 | <p>Use parentheses ()'s to combine the commands into a single process, which will concatenate the stdout of each of them.</p>
<p>Example 1 (note that <code>$</code> is the shell prompt):</p>
<pre><code>$ (echo zzz; echo aaa; echo kkk) | sort
aaa
kkk
zzz
</code></pre>
<p><br/>
Example 2:</p>
<pre><code>(setopt; unse... |
11,892,729 | How to "log in" to a website using Python's Requests module? | <p>I am trying to post a request to log in to a website using the Requests module in Python but its not really working. I'm new to this...so I can't figure out if I should make my Username and Password cookies or some type of HTTP authorization thing I found (??). </p>
<pre><code>from pyquery import PyQuery
import req... | 11,892,838 | 6 | 0 | null | 2012-08-09 22:12:14.537 UTC | 105 | 2020-10-29 22:50:22.77 UTC | 2012-08-09 22:39:20.423 UTC | null | 1,587,751 | null | 1,587,751 | null | 1 | 140 | python|python-requests|pyquery | 328,543 | <h2>If the information you want is on the page you are directed to immediately after login...</h2>
<p>Lets call your <code>ck</code> variable <code>payload</code> instead, like in the <a href="http://docs.python-requests.org/en/latest/user/quickstart/#more-complicated-post-requests" rel="noreferrer">python-requests</a... |
20,057,771 | 'No JUnit tests found' in Eclipse | <p>So I'm new to JUnit, and we have to use it for a homework assignment. Our professor gave us a project that has one test class, <code>BallTest.java</code>. When I right click > Run as > JUnit Test, I get a popup error that says 'No JUnit tests found'. I know the question has been answered here(<a href="https://stacko... | 20,062,207 | 23 | 5 | null | 2013-11-18 20:58:55.097 UTC | 12 | 2021-07-15 11:30:06.603 UTC | 2017-05-23 12:26:33.11 UTC | null | -1 | null | 994,541 | null | 1 | 52 | java|eclipse|unit-testing|junit | 141,409 | <p>Right Click on Project > Properties > Java Build Path > Add the Test folder as source folder.</p>
<p>All source folders including Test Classes need to be in Eclipse Java Build Path. So that the sources such as main and test classes can be compiled into the build directory (Eclipse default folder is bin).</p> |
3,585,871 | How can I get the current mouse (pointer) position co-ordinates in X | <p>This can either be some sample C code or a utility that will show me either gui or on the console it doesn't matter, but I have to be able to "command" it to grab the co-ordinates at an exact time which makes xev not very useful (that I could figure out).</p> | 3,591,679 | 4 | 0 | null | 2010-08-27 15:45:31.547 UTC | 9 | 2020-01-06 18:40:01.65 UTC | 2011-07-28 17:08:29.793 UTC | null | 102,937 | null | 376,403 | null | 1 | 22 | xorg | 21,476 | <p>I'm not a C programmer by any means but I looked at a couple of online tutorials and think this is how you are supposed to read the current mouse position. This is my own code and I'd done nothing with Xlib before so it could be completely broken (for example, the error handler shouldn't just do nothing for every er... |
3,958,342 | Convert audio to text | <p>I just want to know if there is any build in libraries or external libraries in Java or C# that allow me to take an audio file and parse it and extract the text from it.</p>
<p>I need to make an application to do so, but I don't know from where I can start.</p> | 3,958,634 | 5 | 6 | null | 2010-10-18 10:41:44.933 UTC | 10 | 2012-03-17 17:09:48.313 UTC | 2011-07-25 11:28:34.263 UTC | null | 418,556 | null | 458,700 | null | 1 | 12 | c#|java|speech-recognition|audio-processing | 23,709 | <p>Here are some of your options:</p>
<ul>
<li><a href="http://msdn.microsoft.com/en-us/library/ms723627%28VS.85%29.aspx" rel="noreferrer">Microsoft Speech</a></li>
<li><a href="http://www.lumenvox.com/products/speech_engine/" rel="noreferrer">Lumenvox</a></li>
<li><a href="http://www.nuance.com/for-developers/dragon/... |
3,230,633 | How to register handler interceptors with spring mvc 3.0? | <p>It should be easy:</p>
<pre><code><bean id="handlerMapping"
class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping">
<property name="interceptors">
<list>
<ref bean="myInterceptor" />
</list>
</property>
</b... | 3,231,197 | 5 | 2 | null | 2010-07-12 17:23:54.273 UTC | 10 | 2012-11-08 00:28:28.85 UTC | null | null | null | null | 203,907 | null | 1 | 18 | java|spring|spring-mvc | 27,625 | <p>By default, Spring will register a <code>BeanNameUrlHandlerMapping</code>, and a <code>DefaultAnnotationHandlerMapping</code>, without any explicit config required. </p>
<p>If you define your own <code>HandlerMapping</code> beans, then the default ones will not be registered, and you'll just get the explicitly decl... |
3,822,732 | Android: getString(R.string) in static method | <p>When programming for Android sometimes you have to use static methods. But when you try to access you resources in a static method with <code>getString(R.string.text)</code> you'll get an error. Making it static doesn't work.</p>
<p>Does anyone knows a good way around this? The resource files in Android are very he... | 3,822,756 | 6 | 0 | null | 2010-09-29 14:43:24.353 UTC | 2 | 2019-11-25 10:38:02.517 UTC | 2014-02-28 11:13:09.773 UTC | null | 1,542,891 | null | 461,864 | null | 1 | 30 | android|static|getstring | 32,708 | <p>One way or another, you'll need a Context for that... For static methods this probably means you need to pass along a Context when calling them.</p> |
3,649,639 | limit on string size in c++? | <p>I have like a million records each of about 30 characters coming in over a socket. Can I read all of it into a single string? Is there a limit on the string size I can allocate?</p>
<p>If so, is there someway I can send data over the socket records by record and receive it record by record. I dont know the size of ... | 3,649,663 | 8 | 0 | null | 2010-09-06 07:06:15.733 UTC | null | 2016-08-21 20:05:15.64 UTC | null | null | null | null | 430,322 | null | 1 | 23 | c++ | 80,874 | <p>To answer your first question: The maximum size of a C++ string is given by <a href="http://en.cppreference.com/w/cpp/string/basic_string/max_size" rel="noreferrer">string::max_size</a></p> |
3,786,881 | What is a "method" in Python? | <p>Can anyone, please, explain to me in very simple terms what a "method" is in Python?</p>
<p>The thing is in many Python tutorials for beginners this word is used in such way as if the beginner already knew what a method is in the context of Python. While I am of course familiar with the general meaning of this word... | 3,786,900 | 8 | 4 | null | 2010-09-24 12:07:07.263 UTC | 51 | 2021-11-17 20:22:55.787 UTC | 2012-07-16 20:07:11.007 UTC | null | 1,288 | null | 206,857 | null | 1 | 80 | python|methods | 218,271 | <p>It's a function which is a member of a class:</p>
<pre><code>class C:
def my_method(self):
print("I am a C")
c = C()
c.my_method() # Prints("I am a C")
</code></pre>
<p>Simple as that!</p>
<p>(There are also some alternative kinds of method, allowing you to control the relationship ... |
3,973,994 | How can I recover from an erronous git push -f origin master? | <p>I just committed the wrong source to my project using <code>--force</code> option.</p>
<p>Is it possible to revert? I understand that all previous branches have been overwritten using <code>-f</code> option, so I may have screwed up my previous revisions.</p> | 3,974,056 | 9 | 1 | null | 2010-10-20 00:54:59.673 UTC | 43 | 2020-07-12 00:41:13.49 UTC | 2016-11-25 17:43:16.3 UTC | null | 971,141 | null | 297,201 | null | 1 | 118 | git|git-commit|git-push | 101,186 | <p>Git generally doesn't throw anything away, but recovering from this may still be tricky.</p>
<p>If you have the correct source then you could just push it into the remote with the <code>--force</code> option. Git won't have deleted any branches unless you told it to. If you have actually lost commits then take a lo... |
3,330,193 | Early exit from function? | <p>I have a function:</p>
<pre><code>function myfunction() {
if (a == 'stop') // How can I stop the function here?
}
</code></pre>
<p>Is there something like <code>exit()</code> in JavaScript?</p> | 3,330,206 | 12 | 6 | null | 2010-07-25 17:16:24.91 UTC | 73 | 2021-04-21 18:17:52.673 UTC | 2018-05-30 18:04:29.337 UTC | null | 881,229 | null | 291,772 | null | 1 | 466 | javascript | 975,821 | <p>You can just use <code>return</code>.</p>
<pre><code>function myfunction() {
if(a == 'stop')
return;
}
</code></pre>
<p>This will send a return value of <code>undefined</code> to whatever called the function.</p>
<pre><code>var x = myfunction();
console.log( x ); // console shows undefined
</code... |
7,816,863 | How to use document.getElementByName and getElementByTag? | <pre><code> document.getElementById('frmMain').elements
</code></pre>
<p>can i use like this </p>
<pre><code>document.getElementByName('frmMain').elements
</code></pre>
<p>or </p>
<pre><code>document.getElementBytag('table').elements`
</code></pre> | 7,816,899 | 6 | 1 | null | 2011-10-19 05:21:26.92 UTC | 5 | 2019-05-11 17:49:33.693 UTC | 2014-12-20 15:03:38.937 UTC | null | 1,897,200 | null | 989,368 | null | 1 | 17 | javascript | 187,122 | <ul>
<li><a href="https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementById" rel="nofollow noreferrer">document.getElementById('frmMain').elements</a><br>
assumes the form has an ID and that the ID is unique as IDs should be. Although it also accesses a <code>name</code> attribute in IE, please add ID to... |
7,972,785 | Can a C macro definition refer to other macros? | <p>What I'm trying to figure out is if something such as this (written in <strong>C</strong>):</p>
<pre><code>#define FOO 15
#define BAR 23
#define MEH (FOO / BAR)
</code></pre>
<p>is allowed? I would want the preprocessor to replace every instance of</p>
<pre><code>MEH
</code></pre>
<p>with</p>
<pre><code>(15 / ... | 7,972,803 | 6 | 2 | null | 2011-11-01 20:56:06.6 UTC | 7 | 2019-09-24 11:17:52.853 UTC | 2015-11-28 16:12:16.357 UTC | null | 4,370,109 | null | 1,024,485 | null | 1 | 66 | c|c-preprocessor | 52,418 | <p>Short answer yes. You can nest defines and macros like that - as many levels as you want as long as it isn't recursive.</p> |
8,320,172 | Use Html.RadioButtonFor and Html.LabelFor for the same Model but different values | <p>I have this Razor Template</p>
<pre><code><table>
<tr>
<td>@Html.RadioButtonFor(i => i.Value, "1")</td>
<td>@Html.LabelFor(i => i.Value, "true")</td>
</tr>
<tr>
<td>@Html.RadioButtonFor(i => i.Value, "0")</td>
<td>@Html.Label... | 8,623,532 | 7 | 2 | null | 2011-11-30 01:45:44.103 UTC | 14 | 2015-10-09 11:30:42.797 UTC | null | null | null | null | 596,137 | null | 1 | 36 | asp.net-mvc-3|razor | 65,127 | <p>I've been wondering how MVC determines "nested" field names and IDs. It took a bit of research into the MVC source code to figure out, but I think I have a good solution for you.</p>
<h3>How EditorTemplates and DisplayTemplates determine field names and IDs</h3>
<p>With the introduction of EditorTemplates and Dis... |
8,045,556 | Can't make the custom DialogFragment transparent over the Fragment | <p>I need to create a dialog over a fragment (that takes up the whole screen). The dialog needs to be a floating dialog that will be positioned over the fragment with the fragment darkened out outside of the fragment..</p>
<p>For the custom Dialog, i have a linearLayout that has curved edges, no matter what i do, the ... | 9,315,283 | 10 | 0 | null | 2011-11-08 03:20:20.343 UTC | 32 | 2020-08-05 02:16:31.757 UTC | null | null | null | null | 137,404 | null | 1 | 116 | android|android-layout|android-fragments|android-dialog|android-dialogfragment | 65,036 | <p>Try</p>
<pre><code>getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
</code></pre>
<p>in your <code>DialogFragment</code>'s <code>onCreateView</code></p> |
8,026,263 | How to see if a user is online in a website with php and mysql driven databases? | <p>I'm building a community website. Users will login and logout as usually. </p>
<p>I use the attribute status online/offline to set the user's status. But what if a user just clicks the X button or disconnects otherwise without logging out?</p>
<p>Lately my computer crashed, when I opened the site with my laptop I ... | 8,026,310 | 12 | 0 | null | 2011-11-06 09:50:29.16 UTC | 9 | 2020-02-06 17:26:26.113 UTC | 2017-01-25 07:34:40.283 UTC | null | 6,887,672 | null | 929,729 | null | 1 | 10 | php|mysql|database|login-control | 42,785 | <p>You don't need the online/offline flag, you just need to save the last activitity time. When displaying the user status, if last activity time is less than now+15 minutes then user is online, offline otherwise.</p> |
4,781,070 | How to insert tab character when expandtab option is on in Vim | <p>When I'm in insert mode and I have the <a href="https://vimhelp.org/options.txt.html#%27expandtab%27" rel="noreferrer"><code>expandtab</code></a> option switched on, pressing <kbd>Tab ↹</kbd> results in inserting the configured number of spaces.</p>
<p>But occasionally I want to insert an actual tab character.</p>
... | 4,781,099 | 3 | 0 | null | 2011-01-24 10:46:56.54 UTC | 92 | 2021-04-02 05:08:41.687 UTC | 2020-05-04 11:05:46.837 UTC | null | 775,954 | null | 529,397 | null | 1 | 371 | vim | 117,908 | <p>You can use <code><CTRL-V><Tab></code> in "insert mode". In insert mode, <code><CTRL-V></code> inserts a literal copy of your next character.</p>
<p>If you need to do this often, @Dee`Kej suggested (in the comments) setting <kbd>Shift</kbd>+<kbd>Tab</kbd> to insert a real tab with this mapping:</p... |
4,116,681 | How to load system properties file in Spring? | <p>I have a properties file which I would like loaded in to System Properties so that I can access it via <code>System.getProperty("myProp")</code>. Currently, I'm trying to use the Spring <code><context:propert-placeholder/></code> like so:</p>
<pre><code><context:property-placeholder location="/WEB-INF/pro... | 4,117,375 | 4 | 1 | null | 2010-11-07 06:04:01.43 UTC | 9 | 2022-03-18 02:33:34.94 UTC | null | null | null | null | 125,278 | null | 1 | 8 | java|spring|spring-mvc | 35,447 | <p>While I subscribe to the Spirit of <a href="https://stackoverflow.com/questions/4116681/how-to-load-system-properties-file-in-spring/4117086#4117086">Bozho's answer</a>, I recently also had a situation where I needed to set System Properties from Spring. Here's the class I came up with:</p>
<p><strong>Java Code:</s... |
4,718,417 | Matlab: loading a .mat file, why is it a struct? can I just have the stored vars loaded into memory? | <p>Relevant code:</p>
<pre><code>function result = loadStructFromFile(fileName, environmentName)
result = load(fileName, environmentName);
bigMatrix = loadStructFromFile('values.mat','bigMatrix');
</code></pre>
<p>But when I look in the workspace, it shows 'bigMatrix' as a 1x1 struct. When I click on the stru... | 4,718,603 | 4 | 0 | null | 2011-01-17 22:04:22.14 UTC | 1 | 2020-10-07 21:56:34.657 UTC | 2013-06-16 12:33:39.303 UTC | null | 1,714,410 | null | 356,849 | null | 1 | 8 | matlab|matlab-load | 38,051 | <p>As the documentation of <a href="http://www.mathworks.com/help/techdoc/ref/load.html" rel="noreferrer">LOAD</a> indicates, if you call it with an output argument, the result is returned in a struct. If you do not call it with an output argument, the variables are created in the local workspace with the name as which... |
4,351,170 | Do DDD and SOA really play well together? | <p>Please let me know, ever so gently, if I am totally mangling the DDD concept, but here is my dilemma.</p>
<p>Let's say I have the following domain model:</p>
<pre><code>Teacher
IList<Class>
Class
Teacher
IList<Student>
Student
Class
</code></pre>
<p>Now, from a DDD perspective, it seems like... | 4,352,840 | 4 | 0 | null | 2010-12-04 00:34:07.473 UTC | 13 | 2010-12-16 00:55:44.183 UTC | 2010-12-04 00:41:57.57 UTC | null | 205,856 | null | 205,856 | null | 1 | 15 | domain-driven-design|soa | 5,300 | <p>You are thinking about performance, but you will be surprised. In my SOA web services I use such complete object graphs and performance is well within acceptable limits. I would suggest to use business objects and business web methods like <code>SaveTeacher(Teacher t)</code> unless absolutely required to use DTOs fo... |
4,232,842 | How to dynamically change filename while writing in a loop? | <p>I would like to do something like this: In a loop, first iteration write some content into a file named file0.txt, second iteration file1.txt and so on, just increase the number.</p>
<pre><code>FILE *img;
int k = 0;
while (true)
{
// here we get some data into variable data
file = fopen("file.txt",... | 4,232,864 | 5 | 0 | null | 2010-11-20 13:02:13.263 UTC | 7 | 2021-03-20 18:36:42.793 UTC | 2014-09-30 15:55:31.457 UTC | null | 2,988,730 | null | 95,944 | null | 1 | 17 | c | 38,769 | <pre><code>int k = 0;
while (true)
{
char buffer[32]; // The filename buffer.
// Put "file" then k then ".txt" in to filename.
snprintf(buffer, sizeof(char) * 32, "file%i.txt", k);
// here we get some data into variable data
file = fopen(buffer, "wb");
fwrite (data, 1, strlen(data) , file);
... |
4,453,349 | what is the Class object (java.lang.Class)? | <p>The Java documentation for <a href="http://docs.oracle.com/javase/8/docs/api/java/lang/Class.html" rel="noreferrer"><code>Class</code></a> says:</p>
<blockquote>
<p><code>Class</code> objects are constructed automatically by the Java Virtual Machine as classes are loaded and by calls to the <code>defineClass</cod... | 4,453,378 | 7 | 0 | null | 2010-12-15 18:10:23.53 UTC | 83 | 2019-11-20 17:36:03.173 UTC | 2015-08-24 18:35:29.997 UTC | null | 113,632 | null | 515,661 | null | 1 | 90 | java|class|inheritance | 81,800 | <p>Nothing gets typecasted to <code>Class</code>. Every <code>Object</code> in Java belongs to a certain <code>class</code>. That's why the <code>Object</code> class, which is inherited by all other classes, defines the <code>getClass()</code> method.</p>
<p><code>getClass()</code>, or the class-literal - <code>Foo.cl... |
4,393,716 | Is there a a way to achieve closures in C | <p>I would like this to work, but it does not:</p>
<pre><code>#include <stdio.h>
typedef struct closure_s {
void (*incrementer) ();
void (*emitter) ();
} closure;
closure emit(int in) {
void incrementer() {
in++;
}
void emitter() {
printf("%d\n", in);
}
return (closure) {
increment... | 4,393,782 | 9 | 0 | null | 2010-12-09 00:21:45.31 UTC | 20 | 2022-05-10 21:19:54.43 UTC | null | null | null | null | 535,759 | null | 1 | 43 | c|closures | 36,417 | <p>Using <a href="https://savannah.gnu.org/projects/libffcall/" rel="nofollow noreferrer">FFCALL</a>,</p>
<pre><code>#include <callback.h>
#include <stdio.h>
static void incrementer_(int *in) {
++*in;
}
static void emitter_(int *in) {
printf("%d\n", *in);
}
int main() {
int in1 = 10, i... |
4,196,201 | Where are C/C++ main function's parameters? | <p>In C/C++, the main function receives parameters which are of type <code>char*</code>.</p>
<pre><code>int main(int argc, char* argv[]){
return 0;
}
</code></pre>
<p><code>argv</code> is an array of <code>char*</code>, and points to strings. Where are these string located? Are they on the heap, stack, or somewhere... | 4,196,745 | 10 | 5 | null | 2010-11-16 16:06:48.797 UTC | 15 | 2017-09-04 04:29:17.373 UTC | 2017-05-11 17:36:36.587 UTC | null | 1,763,356 | null | 500,638 | null | 1 | 62 | c++|c|parameters|location|program-entry-point | 21,388 | <p>It's actually a combination of compiler dependence and operating system dependence. <code>main()</code> is a function just like any other C function, so the location of the two parameters <code>argc</code> and <code>argv</code> will follow standard for the compiler on the platform. e.g. for most C compilers target... |
14,553,066 | Less css &:hover | <p>How can I create this class with less?</p>
<pre><code>.class {
display: none;
}
a:hover .class {
display: block;
}
</code></pre> | 14,553,094 | 3 | 0 | null | 2013-01-27 22:27:43.91 UTC | 1 | 2017-10-24 14:46:03.74 UTC | 2017-10-24 14:46:03.74 UTC | null | 2,678,454 | null | 1,238,583 | null | 1 | 13 | less | 49,902 | <p>Like this?</p>
<pre><code>.class {
display: none;
a:hover & {
display: block;
}
}
</code></pre> |
14,667,274 | ASP.NET MVC Partial view ajax post? | <p><strong>Index.html (View)</strong></p>
<pre><code><div class="categories_content_container">
@Html.Action("_AddCategory", "Categories")
</div>
</code></pre>
<p><strong>_AddCategory.cshtml (PartialView)</strong></p>
<pre><code><script>
$(document).ready(function () {
$('input[type... | 14,667,550 | 2 | 3 | null | 2013-02-02 22:37:53.793 UTC | 11 | 2015-04-10 18:26:33.437 UTC | 2015-04-10 18:26:33.437 UTC | null | 275,567 | null | 1,324,756 | null | 1 | 15 | javascript|jquery|asp.net-mvc|asp.net-mvc-3|asp.net-mvc-4 | 38,830 | <p>Don't redirect from controller actions that are invoked with AJAX. It's useless. You could return the url you want to redirect to as a JsonResult:</p>
<pre><code>[HttpPost]
public ActionResult _AddCategory(CategoriesViewModel viewModel)
{
if(//success)
{
// DbOperations...
return Json(new { ... |
14,828,678 | Disconnecting lambda functions in Qt5 | <p>Is it possible to disconnect a lambda function? And if "yes", how?</p>
<p>According to <a href="https://qt-project.org/wiki/New_Signal_Slot_Syntax" rel="noreferrer">https://qt-project.org/wiki/New_Signal_Slot_Syntax</a> I need to use a <code>QMetaObject::Connection</code> which is returned from the QObject::connect... | 14,829,520 | 3 | 4 | null | 2013-02-12 08:49:11.017 UTC | 12 | 2022-08-11 22:08:30.003 UTC | null | null | null | null | 940,158 | null | 1 | 43 | c++|lambda|qt5 | 17,616 | <p>If you capture <code>conn</code> directly, you're capturing an uninitialised object by copy, which results in undefined behaviour. You need to capture a smart pointer:</p>
<pre><code>std::unique_ptr<QMetaObject::Connection> pconn{new QMetaObject::Connection};
QMetaObject::Connection &conn = *pconn;
conn =... |
14,797,525 | Differences between nuget-packing a csproj vs. nuspec | <p>Recently, I started to pack nuget packages out of my several projects. First I started with the Package Explorer application. It is a nice tool, but it's less useful if you do continuous integration. Then I looked into specifying the <em>nuspec</em> template file, and passing changing data, e.g. version number, as c... | 14,808,085 | 4 | 0 | null | 2013-02-10 12:04:54.613 UTC | 11 | 2019-05-23 11:49:09.383 UTC | 2013-02-10 14:12:14.907 UTC | null | 526,535 | null | 568,266 | null | 1 | 59 | c#|.net|nuget | 35,808 | <p>Here's a little-known fact: <strong>you can combine both</strong>!
Target a csproj file, and make sure there's a nuspec file in the same directory with the same name as the csproj file. NuGet will merge the two during package creation.</p>
<p>So in short: target <code><ProjectName>.csproj</code>, optionally a... |
19,617,621 | Android: How to send http request via service every 10 seconds | <p>I need to receive a status from the server every 10 seconds.</p>
<p>I tried to do that by sending a http request via service.</p>
<p>The problem is that my code executes only once.</p>
<p>This is the code for my service:</p>
<pre><code>public class ServiceStatusUpdate extends Service {
@Override
public IBinder ... | 19,617,698 | 5 | 0 | null | 2013-10-27 11:38:32.79 UTC | 8 | 2015-12-29 12:15:23.223 UTC | 2013-10-27 11:55:07.223 UTC | null | 1,511,951 | null | 2,924,926 | null | 1 | 11 | java|android|service|httprequest | 33,633 | <p>Put a handler inside onPostExecute to send a http request after 10 secs</p>
<pre><code>new Handler().postDelayed(new Runnable() {
public void run() {
requestHttp();
}
}, 10000);
</code></pre>
<p>After 10 secs doInBackground will be executed again, after that onPostExecute again, han... |
2,507,235 | jquery flot xaxis time | <p>In this example in xaxis will compare the days...</p>
<pre><code>$.plot($("#placeholder"), data, {
yaxis: {},
xaxis: { mode: "time",minTickSize: [1, "day"],timeformat: "%d/%m/%y"},"lines": {"show": "true"},"points": {"show": "true"},clickable:true,hoverable: true
});
</co... | 2,508,428 | 2 | 0 | null | 2010-03-24 11:33:52.883 UTC | 6 | 2014-09-12 15:07:43.063 UTC | 2012-10-03 14:38:45.347 UTC | null | 970,544 | null | 109,227 | null | 1 | 19 | jquery|flot | 70,605 | <pre><code>$.plot($("#placeholder"), data, {
yaxis: {
},
xaxis: { mode: "time",minTickSize: [1, "hour"],
min: (new Date("2000/01/01")).getTime(),
max: (new Date("2000/01/02")).getTime()
},
"lines": {"show": "true"},
"points": {"show": "true"},
... |
2,386,793 | Efficient looping through AS3 dictionary | <pre><code>for (var k in dictionary)
{
var key:KeyType = KeyType(k);
var value:ValType = ValType(dictionary[k]); // <-- lookup
// do stuff
}
</code></pre>
<p>This is what I use to loop through the entries in a dictionary. As you can see in every iteration I perform a lookup in the dictionary. Is there a more... | 2,386,940 | 2 | 0 | null | 2010-03-05 12:53:12.113 UTC | 8 | 2016-09-16 15:33:04.673 UTC | 2010-03-05 13:21:18.427 UTC | null | 85,821 | null | 85,821 | null | 1 | 45 | actionscript-3|iterator|iteration | 47,126 | <p>Iterate through <strong>keys</strong> & <strong>values</strong>: </p>
<pre><code>for (var k:Object in dictionary) {
var value:ValType = dictionary[k];
var key:KeyType = k;
}
</code></pre>
<p>Iterate through <strong>values</strong> more concisely: </p>
<pre><code>for each (var value:ValType in dictio... |
3,050,492 | How can I set default storage engine used by MySQL? | <p>I've been working on writing SQL to create a MySQL database with several default options, including character set and collation. Is it possible to set the default storage engine for tables in this database to InnoDB? </p>
<p>I've been looking through the MySQL 5.1 manual and I've found the statement <code>ENGINE=i... | 3,050,502 | 2 | 0 | null | 2010-06-16 03:12:30.137 UTC | 12 | 2014-09-25 10:22:58.003 UTC | 2014-09-25 10:18:37.787 UTC | null | 194,894 | null | 359,030 | null | 1 | 55 | mysql|database|innodb | 77,280 | <p>Quoting the Reference Manual (<a href="http://dev.mysql.com/doc/refman/5.1/en/storage-engine-setting.html" rel="noreferrer">Setting the Storage Engine</a>):</p>
<blockquote>
<p>If you omit the <code>ENGINE</code> option, the default storage engine is used. Normally, this is MyISAM, but you can change it by using ... |
33,773,477 | JWT (JSON Web Token) in PHP without using 3rd-party library. How to sign? | <p>There are a few libraries for implementing JSON Web Tokens (JWT) in PHP, such as <a href="https://github.com/firebase/php-jwt" rel="noreferrer">php-jwt</a>. I am writing my own, very small and simple class but cannot figure out why my signature fails validation <a href="http://jwt.io/" rel="noreferrer">here</a> eve... | 33,773,850 | 3 | 0 | null | 2015-11-18 06:47:15.297 UTC | 11 | 2021-10-06 20:08:22.49 UTC | null | null | null | null | 3,977,061 | null | 1 | 24 | php|json|authentication|jwt|sha | 24,116 | <p>I solved it! I did not realize that the signature itself needs to be base64 encoded. In addition, I needed to set the last optional parameter of the <code>hash_hmac</code> function to <code>$raw_output=true</code> (see <a href="http://php.net/manual/en/function.hash-hmac.php" rel="noreferrer">the docs</a>. In shor... |
34,507,160 | How can I handle an event to open a window in react js? | <p>I want to open a window after clicking the fshare:</p>
<p>My <code>render()</code> return is like this</p>
<pre><code><Modal.Footer>
<img src="/static/img/fshare.png" onClick={this.fbShare} />
<Button onClick={this.hide}>Close</Button>
</Modal.Footer>
</code></pre>
<p>... | 34,507,414 | 2 | 0 | null | 2015-12-29 08:17:40.56 UTC | 2 | 2021-10-25 11:08:38.23 UTC | 2020-12-23 00:39:22.463 UTC | null | 1,783,163 | null | 4,796,134 | null | 1 | 14 | reactjs|event-handling|modal-dialog | 78,643 | <p>You are on the right way!</p>
<p>Is it something you need? I prepared the example:
click <a href="https://jsfiddle.net/69z2wepo/25653/" rel="noreferrer" title="jsfiddle">here</a></p>
<pre><code>var Example = React.createClass({
fbShare: function() {
window.open('http://www.facebook.com/sharer.php?s=10... |
54,851,861 | How do I activate type annotations hints in Kotlin like depicted? | <p>I was able to activate this option once in my MacOS intellij version, but could never find this option anymore, I forgot its name.</p>
<p>I know there is the CTRL+SHIFT+P alternative to this, but it is not as user-friendly.</p>
<p>How can I activate the option to make intellij show me all the inferred types like d... | 54,852,497 | 3 | 0 | null | 2019-02-24 12:26:44.413 UTC | 20 | 2022-07-08 09:11:26.923 UTC | null | null | null | null | 2,207,729 | null | 1 | 46 | intellij-idea|kotlin | 11,355 | <p>For <strong>IntelliJ (2022.1)</strong> onwards got to <code>Settings -> Editor -> Inlay Hints -> Types -> Kotlin -> Types -> Parameter hints -> Local variable types</code> or check all.</p>
<p>I think you are allowed to say, that this feature configuration is a little bit hidden in the menues an... |
29,087,882 | Android Studio Run/Debug configuration error: Module not specified | <p>I am getting a 'Module not specified' error in my run config. I have no module showing in the drop down yet I can see my module no probs. The issue came about when I refactored my module name, changed the settings.gradle to new name.</p>
<p>Now when I go to project structure and select my module nothing shows in th... | 29,087,954 | 23 | 0 | null | 2015-03-16 22:11:01.917 UTC | 31 | 2021-11-21 02:25:27.42 UTC | 2017-09-08 14:17:22.853 UTC | null | 2,350,083 | null | 510,981 | null | 1 | 174 | android|android-studio|module|gradle | 217,923 | <p>never mind, i changed the name in settings.gradle and synced and then changed it back and synced again and it inexplicably worked this time.</p> |
36,493,977 | Flip a Bitmap image horizontally or vertically | <p>By using this code we can rotate an image:</p>
<pre><code>public static Bitmap RotateBitmap(Bitmap source, float angle) {
Matrix matrix = new Matrix();
matrix.postRotate(angle);
return Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, true);
}
</code></pre>
<p>But h... | 36,494,192 | 6 | 0 | null | 2016-04-08 07:31:26.96 UTC | 4 | 2020-09-01 06:42:35.83 UTC | 2016-04-08 07:53:40.503 UTC | null | 360,211 | null | 5,138,179 | null | 1 | 33 | java|android|image|matrix|android-bitmap | 24,643 | <p>Given <code>cx,cy</code> is the centre of the image:</p>
<p>Flip in x:</p>
<pre><code>matrix.postScale(-1, 1, cx, cy);
</code></pre>
<p>Flip in y:</p>
<pre><code>matrix.postScale(1, -1, cx, cy);
</code></pre>
<p>Altogether:</p>
<pre><code>public static Bitmap createFlippedBitmap(Bitmap source, boolean xFlip, boolean... |
40,476,233 | How to mock an async repository with Entity Framework Core | <p>I'm trying to create a unit test for a class that calls into an async repository. I'm using ASP.NET Core and Entity Framework Core. My generic repository looks like this.</p>
<pre><code>public class EntityRepository<TEntity> : IEntityRepository<TEntity> where TEntity : class
{
private readonly Saa... | 40,491,640 | 9 | 3 | null | 2016-11-07 23:01:15.59 UTC | 27 | 2022-09-12 11:38:40.103 UTC | 2016-11-07 23:13:56.543 UTC | null | 5,233,410 | null | 6,162,143 | null | 1 | 99 | c#|unit-testing|asp.net-core|moq|entity-framework-core | 54,624 | <p>Thanks to @Nkosi for pointing me to a link with an example of doing the same thing in EF 6: <a href="https://msdn.microsoft.com/en-us/library/dn314429.aspx" rel="noreferrer">https://msdn.microsoft.com/en-us/library/dn314429.aspx</a>. This didn't work exactly as-is with EF Core, but I was able to start with it and m... |
47,637,469 | How to mat-button-toggle by default selected in angular | <p>How can I set default selected last button in toggle group.<br>
This is my code.</p>
<pre><code><mat-button-toggle-group #group="matButtonToggleGroup">
<mat-button-toggle value="Heritage">
<span>Heritage</span>
</mat-button-toggle>
<mat-button-toggle value="Natur... | 47,991,657 | 7 | 0 | null | 2017-12-04 16:11:17.597 UTC | 4 | 2022-02-08 15:07:12.3 UTC | 2020-08-14 19:09:06.56 UTC | null | 4,308,163 | null | 4,308,163 | null | 1 | 60 | angular|angular-material|angular5 | 62,309 | <p>I fixed it. Simply add the <code>value</code> attribute to the <code>mat-button-toggle-group</code> tag.</p>
<pre><code><mat-button-toggle-group #group="matButtonToggleGroup" value="All">
<mat-button-toggle value="Heritage">
<span>Heritage</span>
</mat-button-toggle>
<mat-button... |
38,768,567 | How to print object in Node JS | <p>In the below code (running on Node JS) I am trying to print an object obtained from an external API using <code>JSON.stringify</code> which results in an error: </p>
<blockquote>
<p>TypeError: Converting circular structure to JSON</p>
</blockquote>
<p>I have looked at the questions on this topic, but none could... | 38,771,700 | 8 | 3 | null | 2016-08-04 13:22:11.003 UTC | 2 | 2022-06-22 18:35:30.303 UTC | null | null | null | null | 2,652,541 | null | 1 | 27 | javascript|json|node.js | 91,433 | <p>By using the http <code>request</code> client, I am able to print the JSON object as well as print the <code>country</code> value. Below is my updated code.</p>
<pre><code>var request = require('request');
request('http://ip-api.com/json', function (error, response, body) {
if (!error && response.statusCo... |
31,608,770 | TABLEAU: calc field to get the last value available | <p>I'm using Tableau Desktop, my data are like this:</p>
<pre><code>KPI,date,monthValue
coffee break,01/06/2015,10.50
coffee break,01/07/2015,8.30
</code></pre>
<p>and I want to build a table like this</p>
<pre><code>KPI, year(date), last value
coffee time, 2015, 8.30
</code></pre>
<p>How can I set a calculated fie... | 31,609,712 | 1 | 0 | null | 2015-07-24 10:56:10.253 UTC | null | 2015-08-27 09:54:00.193 UTC | 2015-08-27 09:54:00.193 UTC | null | 1,213,296 | null | 5,151,915 | null | 1 | 4 | field|tableau-api | 48,359 | <p>If you are using Tableau 9 then you can do this with an LOD calc that looks for the max value in your date field and then checks if the current date value is the same as the max date value.</p>
<pre><code>[Date] == {fixed: max([Date])}
</code></pre>
<p>As you can see in the example below when you use the calc as a... |
35,479,080 | How do I turn a Windows feature on/off from the command line in Windows 10? | <p>In Windows 10 and from "Programs and Features", you can turn Windows features on or off and then initiate a download and installation. I wish to turn ".NET Framework 3.5" ON and have it downloaded and installed, but I need to do it via e.g. a PowerShell script or via a command. I need to use the command line.</p>
<... | 37,999,562 | 3 | 0 | null | 2016-02-18 10:37:44.437 UTC | 3 | 2019-12-10 16:47:06.63 UTC | 2019-05-04 14:43:01.86 UTC | null | 63,550 | null | 2,448,495 | null | 1 | 16 | powershell|windows-10 | 41,493 | <p>Run a command prompt <strong>as an administrator</strong> and use:</p>
<pre><code>dism /online /Get-Features
</code></pre>
<p>This will display the feature names since they don't always match up with what you're seeing in that visual feature list. It will also show which are currently enabled/disabled. Once you fi... |
35,369,419 | How to use images in css with Webpack | <p>I am making a React w/ Webpack setup and am struggling to do what seems like should be a simple task. I want webpack to include images, and minimize them like I with gulp but I can't figure it out. I just want to be able to link an image in my css like so:</p>
<pre><code>/* ./src/img/background.jpg */
body { backg... | 35,369,698 | 2 | 0 | null | 2016-02-12 18:09:45.36 UTC | 12 | 2020-04-04 12:17:14.073 UTC | null | null | null | null | 3,737,841 | null | 1 | 56 | css|image|reactjs|webpack|loader | 61,026 | <p>I was stuck with similar issue and found that you can use <a href="https://github.com/webpack-contrib/url-loader" rel="noreferrer"><code>url-loader</code></a> to resolve <code>"url()"</code> statements in your CSS as any other require or import statements.</p>
<p>To install it:</p>
<p><code>npm install url-loader ... |
44,480,740 | How to save a Docker container state | <p>I'm trying to learn the ins and outs of Docker, and I'm confused by the prospect of saving an image. </p>
<p>I ran the basic Ubuntu image, installed Anaconda Python and a few other things...so now what's the best way to save my progress? Save, commit, export? </p>
<p>None of these seem to work the same way as Virt... | 44,480,870 | 4 | 0 | null | 2017-06-11 05:40:56.16 UTC | 31 | 2021-09-22 18:40:21.18 UTC | 2018-08-06 12:23:11.1 UTC | null | 63,550 | null | 3,325,401 | null | 1 | 116 | docker | 119,220 | <p>The usual way is at least through a <a href="https://docs.docker.com/engine/reference/commandline/commit/" rel="noreferrer"><code>docker commit</code></a>: that will freeze the state of your container into a new image.</p>
<p>Note: As <a href="https://stackoverflow.com/questions/44480740/how-to-saving-a-docker-cont... |
65,837,109 | When should I use "git push --force-if-includes" | <p>When I want to force push, I nearly always use <code>--force-with-lease</code>. Today I upgraded to Git 2.30 and discovered a new option: <code>--force-if-includes</code>.</p>
<p>After reading the <a href="https://git-scm.com/docs/git-push" rel="noreferrer">updated documentation</a>, it's still not entirely clear to... | 65,839,129 | 3 | 0 | null | 2021-01-21 23:11:32.417 UTC | 9 | 2022-03-09 18:45:45.01 UTC | 2021-04-17 02:48:15.723 UTC | null | 184,546 | null | 184,546 | null | 1 | 15 | git|git-push | 2,433 | <p>The <code>--force-if-includes</code> option is, as you've noted, new. If you've never needed it before, you don't need it now. So the shortest answer to "when should I use this" would be "never". The <em>recommended</em> answer is (or will be once it's proven?) <em>always</em>. (I'm not yet c... |
49,454,202 | React Native Unable to find a matching configuration of project (Build only) | <p>My react native build works fine when running <code>react-native run-android</code> or <code>cd android && ./gradlew assembleDebug</code>. But I'll get the following for all every react native package I have installed when running <code>./gradlew assembleRelease</code></p>
<pre><code>> Could not resolve ... | 49,699,547 | 6 | 0 | null | 2018-03-23 16:21:37.173 UTC | 1 | 2021-06-01 06:35:07.897 UTC | 2018-04-06 17:49:14.753 UTC | null | 3,750,636 | null | 3,750,636 | null | 1 | 31 | android|react-native|gradle|android-gradle-plugin|gradlew | 53,731 | <p>Upgrade Gradle and add <code>matchingFallbacks</code> to your non-standard build type.
Your libraries do not know what build type to match.</p>
<p>Eg.</p>
<pre><code>buildType {
...
mySpecialRelease {
...
matchingFallbacks = ['release', 'debug']
}
}
</code></pre> |
24,629,705 | Django using get_user_model vs settings.AUTH_USER_MODEL | <p>Reading the Django Documentation:</p>
<p><strong>get_user_model()</strong></p>
<blockquote>
<p>Instead of referring to User directly, you should reference the user
model using django.contrib.auth.get_user_model(). This method will
return the currently active User model – the custom User model if one
is spe... | 24,630,589 | 6 | 0 | null | 2014-07-08 10:40:48.407 UTC | 34 | 2022-07-08 23:16:35.417 UTC | null | null | null | null | 578,822 | null | 1 | 135 | python|django | 91,272 | <p>Using <code>settings.AUTH_USER_MODEL</code> will delay the retrieval of the actual model class until all apps are loaded. <code>get_user_model</code> will attempt to retrieve the model class at the moment your app is imported the first time. </p>
<p><code>get_user_model</code> cannot guarantee that the <code>User</... |
2,541,865 | Copying nested lists in Python | <p>I want to copy a 2D list, so that if I modify one list, the other is not modified.</p>
<p>For a one-dimensional list, I just do this:</p>
<pre><code>a = [1, 2]
b = a[:]
</code></pre>
<p>And now if I modify <code>b</code>, <code>a</code> is not modified.</p>
<p>But this doesn't work for a two-dimensional list:</p... | 2,541,882 | 3 | 12 | null | 2010-03-29 23:10:34.033 UTC | 17 | 2022-07-09 19:05:49.18 UTC | 2018-03-17 15:17:20.603 UTC | null | 2,301,450 | null | 236,924 | null | 1 | 64 | python|list|copy|deep-copy | 42,481 | <p>For a more general solution that works regardless of the number of dimensions, use <code>copy.deepcopy()</code>:</p>
<pre><code>import copy
b = copy.deepcopy(a)
</code></pre> |
2,444,001 | How Does Appcelerator Titanium Mobile Work? | <p>I'm working on building an iPhone app with Titanium Mobile 1.0 and I see that it compiles down to a native iPhone binary. How does this work? Seems like it would take a lot of heavy lifting to analyze the JavaScript code and do a direct translation into Objective-C without having a superset language like 280 North... | 2,471,774 | 3 | 8 | null | 2010-03-14 22:17:07.73 UTC | 47 | 2013-06-20 07:11:10.017 UTC | 2010-03-17 18:26:57.21 UTC | null | 55,589 | null | 55,589 | null | 1 | 79 | javascript|objective-c|titanium | 41,811 | <p>Titanium takes your Javascript code, analyzes and preprocesses it and then pre-compiles it into a set of symbols that are resolved based on your applications uses of Titanium APIs. From this symbol hierarchy we can build a symbol dependency matrix that maps to the underlying Titanium library symbols to understand w... |
3,160,888 | How can I pattern match on a range in Scala? | <p>In Ruby I can write this:</p>
<pre><code>case n
when 0...5 then "less than five"
when 5...10 then "less than ten"
else "a lot"
end
</code></pre>
<p>How do I do this in Scala?</p>
<p>Edit: preferably I'd like to do it more elegantly than using <code>if</code>.</p> | 3,161,234 | 4 | 1 | null | 2010-07-01 19:06:30.377 UTC | 5 | 2015-08-26 21:38:04.49 UTC | 2011-09-26 01:36:43.03 UTC | null | 109,618 | null | 1,109 | null | 1 | 41 | scala|pattern-matching|range | 14,746 | <p>Inside pattern match it can be expressed with guards:</p>
<pre><code>n match {
case it if 0 until 5 contains it => "less than five"
case it if 5 until 10 contains it => "less than ten"
case _ => "a lot"
}
</code></pre> |
36,338,890 | Enable Lambda function to an S3 bucket using cloudformation | <p>We are creating an S3 bucket using a CloudFormation template. I would like to associate (Add an event to S3 bucket) a Lambda function whenever a file is added to the S3 bucket.</p>
<p>How is it possible through CloudFormation templates. What are the properties which needs to be used in CloudFormation.</p> | 41,518,559 | 5 | 1 | null | 2016-03-31 16:28:30.783 UTC | 16 | 2020-06-05 14:20:40.083 UTC | 2016-04-01 19:22:45.8 UTC | null | 1,065,358 | null | 1,065,358 | null | 1 | 36 | amazon-web-services|amazon-s3|amazon-cloudformation | 43,323 | <p>Here's a complete, self-contained CloudFormation template that demonstrates how to trigger a Lambda function whenever a file is added to an S3 bucket:</p>
<p><a href="https://console.aws.amazon.com/cloudformation/home#/stacks/new?stackName=lambda-s3-event&templateURL=https://s3.amazonaws.com/wjordan-cf-template... |
38,155,039 | What is the difference between native int type and the numpy.int types? | <p>Can you please help understand what are the main differences (if any) between the native int type and the numpy.int32 or numpy.int64 types?</p> | 38,156,888 | 3 | 0 | null | 2016-07-01 23:34:58.38 UTC | 14 | 2016-07-02 05:46:55.29 UTC | null | null | null | null | 6,510,497 | null | 1 | 55 | python|numpy | 44,957 | <p>Another way to look at the differences is to ask what methods do the 2 kinds of objects have.</p>
<p>In Ipython I can use tab complete to look at methods:</p>
<pre><code>In [1277]: x=123; y=np.int32(123)
</code></pre>
<p><code>int</code> methods and attributes:</p>
<pre><code>In [1278]: x.<tab>
x.bit_lengt... |
38,237,942 | cron expression in AWS CloudWatch: How to run once a week | <p>In Amazon AWS CloudWatch it is possible to run a rule according to a schedule that is defined in a cron expression.</p>
<p>The rules for this are outlined <a href="https://docs.aws.amazon.com/AmazonCloudWatch/latest/DeveloperGuide/ScheduledEvents.html" rel="noreferrer">here</a>.</p>
<p>After some trying around, I ... | 38,239,183 | 1 | 0 | null | 2016-07-07 05:14:39.917 UTC | 3 | 2019-01-21 06:23:02.55 UTC | null | null | null | null | 270,662 | null | 1 | 38 | amazon-web-services|cron|cloudwatch | 36,512 | <p>Try
<code>0 16 ? * 1 *</code>
The question marks "says" that it must no be executed everyday, so it must check the week day value.</p> |
757,809 | django-paypal setup | <p>Has anyone setup django-paypal? Here is the link to it <a href="https://github.com/johnboxall/django-paypal" rel="noreferrer">here</a>? </p>
<p>I have "myproject" setup, and my folder sturecture looks like this:</p>
<p>myproject > paypal > (stdandard and pro folders)</p>
<p>to my settins.py file I added</p>
<pre... | 757,820 | 2 | 2 | null | 2009-04-16 19:57:51.277 UTC | 17 | 2011-08-09 19:24:34.867 UTC | 2011-08-09 19:24:34.867 UTC | null | 529,829 | null | 74,474 | null | 1 | 14 | python|django|paypal | 13,052 | <p>In your code...</p>
<pre><code> 'payment_form_cls': 'payment_form_cls', # form class to use for payment
</code></pre>
<p>This must be a Form object that's used for validation.</p>
<pre><code> 'payment_form_cls': MyValidationForm, # form class to use for payment
</code></pre>
<hr>
<p><strong>Edit</strong></... |
1,306,595 | Git confused when merging an update into my subtree | <p>We previously used many submodules in our main repositories, but to increase the maintainability of our projects we started an experimental branch where we replaced them all with subtrees.</p>
<p>This worked good - but now when I'm trying to update one of the subtrees it erroneously merges the update into a complet... | 1,307,817 | 2 | 0 | null | 2009-08-20 14:31:00.48 UTC | 9 | 2013-10-14 11:54:48.94 UTC | 2013-10-14 11:54:48.94 UTC | null | 20,667 | null | 20,667 | null | 1 | 20 | git|merge|git-subtree|subtree | 3,164 | <p>Unfortunately this is a bug (or missing feature) in the "git merge -s subtree" code. It actually <em>guesses</em> the subtrees that you want to merge. Usually, this magically turns out to be correct, but if your subtree contains a lot of changes (or was originally empty, or whatever), then it can fail spectacularl... |
2,400,482 | How do I make a "div" button submit the form its sitting in? | <p>I have ASP.Net code generating my button's HTML for me using divs to get it to look and behave how I want. This question is regarding the <strong>HTML produced</strong> by the ASP.Net code.</p>
<p>A standard button is easy, just set the onClick event of the div to change the page location:</p>
<pre><code><div n... | 2,400,507 | 6 | 3 | null | 2010-03-08 10:05:23.813 UTC | 12 | 2020-12-22 16:36:16.09 UTC | 2020-12-22 16:36:16.09 UTC | null | 1,783,163 | null | 175,893 | null | 1 | 39 | html|asp.net|forms|submit | 130,970 | <pre><code>onClick="javascript:this.form.submit();">
</code></pre>
<p><code>this</code> in div onclick don't have attribute <code>form</code>, you may try <code>this.parentNode.submit()</code> or <code>document.forms[0].submit()</code> will do</p>
<p>Also, <code>onClick</code>, should be <strong><code>onclick</cod... |
3,172,985 | JavaScript - Use variable in string match | <p>I found several similar questions, but it did not help me. So I have this problem:</p>
<pre><code>var xxx = "victoria";
var yyy = "i";
alert(xxx.match(yyy/g).length);
</code></pre>
<p>I don't know how to pass variable in match command. Please help. Thank you.</p> | 3,172,994 | 6 | 2 | null | 2010-07-03 21:52:42.51 UTC | 20 | 2019-06-09 07:10:51.86 UTC | 2019-06-09 07:10:51.86 UTC | null | 2,792,083 | null | 382,854 | null | 1 | 108 | javascript|variables|match | 145,386 | <p>Although the match function doesn't accept string literals as regex patterns, you can use the constructor of the RegExp object and pass that to the String.match function:</p>
<pre><code>var re = new RegExp(yyy, 'g');
xxx.match(re);
</code></pre>
<p>Any flags you need (such as /g) can go into the second parameter. ... |
2,856,438 | How can I link to a specific glibc version? | <p>When I compile something on my Ubuntu Lucid 10.04 PC it gets linked against glibc. Lucid uses 2.11 of glibc. When I run this binary on another PC with an older glibc, the command fails saying there's no glibc 2.11... </p>
<p>As far as I know glibc uses symbol versioning. Can I force gcc to link against a specific s... | 2,858,996 | 6 | 2 | null | 2010-05-18 10:45:23.663 UTC | 70 | 2022-08-17 13:10:58.583 UTC | 2010-10-26 17:14:07.587 UTC | Roger Pate | null | null | 184,207 | null | 1 | 171 | linux|gcc|linker|glibc|libc | 150,518 | <p>You are correct in that glibc uses symbol versioning. If you are curious, the symbol versioning implementation introduced in glibc 2.1 is described <a href="http://people.redhat.com/drepper/symbol-versioning" rel="noreferrer">here</a> and is an extension of Sun's symbol versioning scheme described <a href="http://d... |
2,717,949 | When should I use a semicolon after curly braces? | <p>Many times I've seen a semicolon used after a function declaration, or after the anonymous "return" function of a Module Pattern script. When is it appropriate to use a semicolon after curly braces?</p> | 2,717,956 | 8 | 0 | null | 2010-04-27 00:27:52.64 UTC | 23 | 2020-10-08 20:59:33.207 UTC | 2019-03-24 11:06:42.95 UTC | null | 10,607,772 | null | 321,781 | null | 1 | 66 | javascript|syntax | 31,285 | <p>You use a semicolon after a statement. This is a statement:</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>var foo = function() {
alert("bar");
};</code></pre>
</div>
</... |
2,828,255 | How do I increase the capacity of the Eclipse output console? | <p>Even with the "scroll lock" option enabled for the Eclipse console, eventually it overfills and starts auto-scrolling on me. </p>
<p>Is there some way of increasing the capacity of the console so that it stores more lines? I wasn't able to find the option. </p> | 2,828,293 | 10 | 4 | null | 2010-05-13 15:56:09.48 UTC | 47 | 2021-06-17 23:49:36.067 UTC | null | null | null | null | 23,072 | null | 1 | 348 | eclipse|console | 191,025 | <p>Under <code>Window > Preferences</code>, go to the <code>Run/Debug > Console</code> section, then you should see an option "Limit console output." You can uncheck this or change the number in the "Console buffer size (characters)" text box below.</p>
<p>(This is in Galileo, Helios CDT, Kepler, Juno, Luna, Mar... |
3,199,588 | Fastest way to convert JavaScript NodeList to Array? | <p>Previously answered questions here said that this was the fastest way:</p>
<pre><code>//nl is a NodeList
var arr = Array.prototype.slice.call(nl);
</code></pre>
<p>In benchmarking on my browser I have found that it is more than 3 times slower than this:</p>
<pre><code>var arr = [];
for(var i = 0, n; n = nl[i]; ++... | 3,199,627 | 15 | 5 | null | 2010-07-07 23:04:49.827 UTC | 85 | 2022-08-21 14:15:55.137 UTC | 2014-10-28 02:04:56.84 UTC | null | 527,702 | null | 237,140 | null | 1 | 329 | javascript|arrays|nodelist | 194,160 | <h2>2021 update: <a href="https://developer.mozilla.org/en-US/docs/Web/API/NodeList/forEach" rel="noreferrer">nodeList.forEach() is now standard</a> and supported in all current browsers (<a href="https://caniuse.com/mdn-api_nodelist_foreach" rel="noreferrer">around 95% on both desktop & mobile</a>).</h2>
<p>So you... |
6,165,077 | How do I create a progress bar for data loading in R? | <p>Is it possible to create a progress bar for data loaded into R using <a href="http://www.inside-r.org/r-doc/base/load" rel="noreferrer">load()</a>?</p>
<p>For a data analysis project large matrices are being loaded in R from .RData files, which take several minutes to load. I would like to have a progress bar to mo... | 6,300,431 | 2 | 4 | null | 2011-05-28 23:47:13.923 UTC | 10 | 2013-01-04 04:54:03.36 UTC | null | null | null | null | 61,793 | null | 1 | 26 | file|r|load|progress-bar|binary-data | 7,195 | <p>I came up with the following solution, which will work for file sizes less than 2^32 - 1 bytes. </p>
<p>The R object needs to be serialized and saved to a file, as done by the following code.</p>
<pre><code>saveObj <- function(object, file.name){
outfile <- file(file.name, "wb")
serialize(object, out... |
21,349,950 | Entity Framework 6 Code First - Is Repository Implementation a Good One? | <p>I am about to implement an Entity Framework 6 design with a repository and unit of work.</p>
<p>There are so many articles around and I'm not sure what the best advice is: For example I realy like the pattern implemented here: for the reasons suggested in the article <a href="http://codefizzle.wordpress.com/2012/07... | 21,352,268 | 7 | 1 | null | 2014-01-25 11:30:13.377 UTC | 73 | 2019-07-19 08:18:18.91 UTC | null | null | null | null | 402,421 | null | 1 | 51 | entity-framework|repository-pattern|unit-of-work | 37,136 | <p>@Chris Hardie is correct, EF implements UoW out of the box. However many people overlook the fact that EF also implements a generic repository pattern out of the box too:</p>
<pre><code>var repos1 = _dbContext.Set<Widget1>();
var repos2 = _dbContext.Set<Widget2>();
var reposN = _dbContext.Set<WidgetN... |
35,562,622 | In ionic framework how to set first ion-segment-button in active state by default? | <p>In <code>ionic2</code> how to set the first <code>ion-segment-button</code> in <code>ion-segment</code> to be in <code>active state</code>? I have tried to do it with providing the <code>active class</code> to the <code>ion-segment-button</code> like : </p>
<pre><code> <div padding>
<ion-segment [(ngMo... | 35,576,561 | 3 | 0 | null | 2016-02-22 19:55:26.353 UTC | 3 | 2019-04-09 07:29:14.253 UTC | 2016-02-23 08:25:28.82 UTC | null | 1,823,740 | null | 1,823,740 | null | 1 | 14 | android|ios|ionic-framework|ionic2 | 40,181 | <p>This should be helpful: <a href="http://ionicframework.com/docs/v2/components/#segment" rel="noreferrer">http://ionicframework.com/docs/v2/components/#segment</a></p>
<p>Also, if you dont have a value for home_tabs at the beginning than the ion-segment component will not know what exactly you want. To solve this yo... |
53,189,729 | Typescript Error: setInterval - Type 'Timer' is not assignable to type 'number' | <p>I have the following code:</p>
<pre><code>let onSizeChangeSetInterval = setInterval(() => {...}, 30);
</code></pre>
<p>When I compile this code, I'm getting the following error:</p>
<blockquote>
<p>ERROR in src/components/popover/popover.component.ts(98,17): error TS2322: Type 'Timer' is not assignable to ty... | 53,189,769 | 3 | 0 | null | 2018-11-07 12:46:02.877 UTC | 2 | 2021-09-23 14:26:14.65 UTC | null | null | null | null | 5,148,197 | null | 1 | 28 | javascript|angular|typescript | 18,314 | <p>Use <code>window.setInterval</code> instead</p> |
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