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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2,619,562 | Joining multiple fields in text files on Unix | <p>How can I do it?</p>
<p><em>File1</em> looks like this:</p>
<pre><code>foo 1 scaf 3
bar 2 scaf 3.3
</code></pre>
<p><em>File2</em> looks like this:</p>
<pre><code>foo 1 scaf 4.5
foo 1 boo 2.3
bar 2 scaf 1.00
</code></pre>
<p>What I want to do is to find lines that co-occur in <em>File1</em> and <em>File2</em>
... | 2,619,621 | 11 | 1 | null | 2010-04-12 02:30:00.173 UTC | 11 | 2021-02-06 21:50:33.29 UTC | 2016-07-08 06:55:02.06 UTC | null | 6,136,214 | null | 67,405 | null | 1 | 14 | linux|bash|unix|join | 35,358 | <p>you can try this</p>
<pre><code>awk '{
o1=$1;o2=$2;o3=$3
$1=$2=$3="";gsub(" +","")
_[o1 FS o2 FS o3]=_[o1 FS o2 FS o3] FS $0
}
END{ for(i in _) print i,_[i] }' file1 file2
</code></pre>
<p>output</p>
<pre><code>$ ./shell.sh
foo 1 scaf 3 4.5
bar 2 scaf 3.3 1.00
foo 1 boo 2.3
</code></pre>
<p>If you want to ... |
2,969,561 | How to parse mathematical expressions involving parentheses | <p>This isn't a school assignment or anything, but I realize it's a mostly academic question. But, what I've been struggling to do is parse 'math' text and come up with an answer.</p>
<p>For Example - I can figure out how to parse '5 + 5' or '3 * 5' - but I fail when I try to correctly chain operations together.</p>
... | 2,969,583 | 13 | 10 | null | 2010-06-03 20:34:38.807 UTC | 11 | 2021-06-06 17:17:26.317 UTC | 2010-06-03 21:03:12.653 UTC | null | 8,027 | null | 73,381 | null | 1 | 18 | .net|math|parsing | 26,506 | <p>Ages ago when working on a simple graphing app, I used <a href="http://en.wikipedia.org/wiki/Shunting-yard_algorithm" rel="noreferrer">this algorithm</a> (which is reasonably easy to understand and works great for simple math expressions like these) to first turn the expression into <a href="http://en.wikipedia.org/... |
2,943,222 | Find objects between two dates MongoDB | <p>I've been playing around storing tweets inside mongodb, each object looks like this:</p>
<pre><code>{
"_id" : ObjectId("4c02c58de500fe1be1000005"),
"contributors" : null,
"text" : "Hello world",
"user" : {
"following" : null,
"followers_count" : 5,
"utc_offset" : null,
"location" : "",
"profile_... | 2,943,685 | 17 | 4 | null | 2010-05-31 11:34:43.757 UTC | 120 | 2022-08-31 06:30:37.71 UTC | 2015-08-11 07:20:56.743 UTC | null | 2,476,755 | null | 45,350 | null | 1 | 530 | mongodb|datetime|twitter|mongodb-query | 938,279 | <p><strike><a href="http://cookbook.mongodb.org/patterns/date_range/" rel="noreferrer">Querying for a Date Range (Specific Month or Day)</a></strike> in the <strike><a href="http://cookbook.mongodb.org/" rel="noreferrer">MongoDB Cookbook</a></strike> has a very good explanation on the matter, but below is something I t... |
3,211,595 | Renaming files in a folder to sequential numbers | <p>I want to rename the files in a directory to sequential numbers. Based on creation date of the files.</p>
<p>For Example <code>sadf.jpg</code> to <code>0001.jpg</code>, <code>wrjr3.jpg</code> to <code>0002.jpg</code> and so on, the number of leading zeroes depending on the total amount of files (no need for extra z... | 3,211,670 | 28 | 4 | null | 2010-07-09 10:06:06.463 UTC | 169 | 2022-08-04 22:55:00.327 UTC | 2016-01-05 15:46:10.6 UTC | null | 1,843,331 | null | 259,316 | null | 1 | 309 | bash|rename|batch-rename | 310,820 | <p>Try to use a loop, <code>let</code>, and <code>printf</code> for the padding:</p>
<pre><code>a=1
for i in *.jpg; do
new=$(printf "%04d.jpg" "$a") #04 pad to length of 4
mv -i -- "$i" "$new"
let a=a+1
done
</code></pre>
<p>using the <code>-i</code> flag prevents automatic... |
40,583,721 | print() to console log with color | <p>The code is:</p>
<pre><code>let redColor = "\u{001B}[0;31m"
var message = "Some Message"
print(redColor + message) //This doesn't work
print("\(redColor)\(message)") //This also doesn't work
</code></pre>
<p>and the output would look like this:</p>
<pre><code>[0;31mSome Message
</code></pre>
<p>I've also read t... | 41,740,104 | 7 | 9 | null | 2016-11-14 07:23:56.273 UTC | 8 | 2022-02-26 09:52:21.66 UTC | 2020-10-02 14:17:12.713 UTC | null | 5,623,035 | null | 5,928,180 | null | 1 | 40 | swift|xcode|debugging|logging|colors | 18,119 | <p>Nowadays, Xcode debugging console doesn't support coloring.</p> |
25,388,214 | How do I change navigationBar font in Swift? | <p>This is what I have tried so far, but receiving an error (I have correctly implemented CaviarDreams to the project):</p>
<pre><code>self.navigationController.navigationBar.titleTextAttributes = NSFontAttributeName[UIFont .fontWithName(CaviarDreams.ttf, size: 20)]
</code></pre>
<p>Error says: <code>Use of unresolved ... | 25,388,549 | 9 | 0 | null | 2014-08-19 16:12:21.94 UTC | 13 | 2021-01-06 23:56:07.85 UTC | 2021-01-06 23:56:07.85 UTC | null | 1,783,163 | null | 2,514,271 | null | 1 | 34 | swift|uinavigationbar|navigationbar | 43,926 | <p>Try this:</p>
<pre><code>self.navigationController.navigationBar.titleTextAttributes = [ NSFontAttributeName: UIFont(name: "CaviarDreams", size: 20)!]
</code></pre>
<p><strong>Edit:</strong> Now, UIFont must be unwrapped to be able to be used here.</p>
<p><strong>Swift 5</strong> (+ safe handling of optional <cod... |
25,163,433 | Can you execute an Applescript script from a Swift Application | <p>I have a simple AppleScript that sends an email. How can I call it from within a Swift application?</p>
<p>(I wasn't able to find the answer via Google.)</p> | 25,235,047 | 7 | 0 | null | 2014-08-06 14:45:19.75 UTC | 18 | 2022-08-26 04:26:52.127 UTC | 2015-10-13 14:21:32.667 UTC | null | 168,594 | null | 110,701 | null | 1 | 30 | swift|applescript | 23,738 | <p>Tested: one can do something like this (arbitrary script path added):</p>
<pre><code>import Foundation
let task = Process()
task.launchPath = "/usr/bin/osascript"
task.arguments = ["~/Desktop/testscript.scpt"]
task.launch()
</code></pre> |
42,189,301 | Axios (in React-native) not calling server in localhost | <p>I'm building a really easy api and react-native application. The server works well (tested with PostMan) but the application doesn't call the server. It blocks when axios has to send the post request (see below).</p>
<p>I'm desperate :-( Loosing too mush time in it. Please, if you can help me...</p>
<p>Here is my... | 42,189,984 | 13 | 1 | null | 2017-02-12 15:16:43.85 UTC | 12 | 2022-07-27 01:25:23.107 UTC | null | null | null | null | 6,090,589 | null | 1 | 32 | node.js|react-native|axios | 83,222 | <p>The solution came from a different source, but I post it here to help others looking for the same issue. Basically I used Android AVD (emulator) to build the application. But the emulator is in fact another machine, and that's why it couldn't call the localhost.</p>
<p>To solve the probleme, I had to send the reque... |
10,713,155 | Knockout, CKEditor & Single Page App | <p>I have a situation involving KnockoutJS & CKEditor.</p>
<p>Basically we've got part of our site that is 'single page' app style, currently it just involves 2 pages but will likely expand over time, currently it's just a 'listings' page and a 'manage' page for the items in the list.</p>
<p>The manage page itsel... | 10,925,902 | 7 | 0 | null | 2012-05-23 03:44:18.83 UTC | 9 | 2015-05-26 12:54:23.42 UTC | null | null | null | null | 1,021,316 | null | 1 | 16 | asp.net-mvc|knockout.js|ckeditor|singlepage | 7,190 | <p>For anyone interested I sorted it:</p>
<p>All it was was a basic order of execution, I just needed to set the value to the textarea html before it got initialised.</p>
<p>Note this uses a jquery adaptor extension to do the .ckeditor() on the element.</p>
<p>There is probably also a better way to do the 'blur' par... |
10,852,652 | Difference between dataType jsonp and JSON | <p>I download Jquery UI autoload, looking to remote-jsonp.html. This is ajax function but i open console.. I can't see any request in my console...</p>
<p>What is difference between dataType;"jsonp" and dataType;"JSON"</p>
<pre><code>$( "#city" ).autocomplete({
source: function( request, response ) {
... | 10,852,664 | 2 | 0 | null | 2012-06-01 14:57:32.943 UTC | 8 | 2014-02-12 12:57:04.617 UTC | 2014-02-12 12:57:04.617 UTC | null | 3,012,290 | null | 612,854 | null | 1 | 19 | javascript|jquery|ajax|jquery-ui | 48,052 | <p><code>dataType: jsonp</code> for cross-domain request, that means request to different domain and <code>dataType: json</code> for same domain-same origin request.</p>
<blockquote>
<p>Loads in a JSON block using JSONP. Adds an extra "?callback=?" to the
end of your URL to specify the callback. Disables caching b... |
33,443,146 | Remove image from cache in Glide library | <p>I am using Glide in one of my projects to show image from file.</p>
<p>Below is my code how I am showing the image:</p>
<pre><code>Glide.with(DemoActivity.this)
.load(Uri.parse("file://" + imagePath))
.into(mImage);
</code></pre>
<p>The image at this location(<code>imagePath</code>) keeps on changing. B... | 33,451,376 | 18 | 0 | null | 2015-10-30 19:00:16.037 UTC | 34 | 2021-06-23 09:43:35.99 UTC | 2015-10-31 09:49:17.987 UTC | null | 2,837,959 | null | 1,150,434 | null | 1 | 93 | android|caching|android-glide | 103,551 | <p>This is how I solved this problem.</p>
<p><strong>Method 1: When the URL changes whenever image changes</strong></p>
<pre><code>Glide.with(DemoActivity.this)
.load(Uri.parse("file://" + imagePath))
.diskCacheStrategy(DiskCacheStrategy.NONE)
.skipMemoryCache(true)
.into(mImage);
</code></pre>
<p>di... |
23,421,507 | Get service status from remote server using powershell | <p>How to get the service status for a remote computer that needs a user name and password to log in?</p>
<p>I am trying to find a solution using the following code:</p>
<p><code>$serviceStatus = get-service -ComputerName $machineName -Name $service</code></p>
<p>The default syntax for the <code>get-service</code> c... | 23,421,592 | 4 | 0 | null | 2014-05-02 05:41:53.343 UTC | 5 | 2020-07-08 16:54:34.267 UTC | null | null | null | null | 1,631,315 | null | 1 | 11 | powershell|service|remote-server | 83,825 | <p>As far as I know, Get-Service <a href="http://connect.microsoft.com/PowerShell/feedback/details/567007/get-service-cmdlets-needs-a-credential-parameter" rel="noreferrer">doesn't accept a credential parameter</a>. However, you can do it through <a href="http://technet.microsoft.com/en-us/library/ee176860.aspx" rel="n... |
18,956,611 | Why does my programmatically created screenshot look so bad on iOS 7? | <p>I am trying to implement sharing app with facebook.
I used this code to take the screenshot:</p>
<pre><code>CGSize imageSize = CGSizeMake(self.view.bounds.size.width, self.view.bounds.size.height);
UIGraphicsBeginImageContext(imageSize);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *view... | 18,956,842 | 5 | 0 | null | 2013-09-23 10:08:20.087 UTC | 22 | 2016-04-01 19:32:33.657 UTC | 2017-05-23 11:53:12.433 UTC | null | -1 | null | 1,868,679 | null | 1 | 29 | ios|objective-c|iphone|xcode|screenshot | 38,562 | <p>New <a href="https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIView_Class/UIView/UIView.html#//apple_ref/occ/instm/UIView/snapshotViewAfterScreenUpdates:" rel="noreferrer">API</a> has been added since iOS 7, that should provide efficient way of getting snapshot</p>
<ul>
<li><p><code>snapshotVi... |
19,068,862 | How to overplot a line on a scatter plot in python? | <p>I have two vectors of data and I've put them into <code>pyplot.scatter()</code>. Now I'd like to over plot a linear fit to these data. How would I do this? I've tried using <code>scikitlearn</code> and <code>np.polyfit()</code>.</p> | 19,069,001 | 8 | 0 | null | 2013-09-28 16:05:10.46 UTC | 38 | 2022-04-03 07:46:17.387 UTC | 2022-04-03 07:45:56.187 UTC | null | 13,138,364 | null | 1,849,997 | null | 1 | 77 | python|numpy|matplotlib|linear-regression|scatter-plot | 212,959 | <pre><code>import numpy as np
from numpy.polynomial.polynomial import polyfit
import matplotlib.pyplot as plt
# Sample data
x = np.arange(10)
y = 5 * x + 10
# Fit with polyfit
b, m = polyfit(x, y, 1)
plt.plot(x, y, '.')
plt.plot(x, b + m * x, '-')
plt.show()
</code></pre>
<p><img src="https://i.stack.imgur.com/rnWm... |
36,862,564 | Changing the background color of Tab Bar | <p>I am trying to get desired color rendered in the background of Tab Bar however I am facing problems.
These are the things that I tried :-</p>
<ol>
<li><p>Changing the background color of tab bar object from storyboard. The color rendered is always lighter than the desired color.</p></li>
<li><p>Programmatically c... | 36,862,601 | 6 | 0 | null | 2016-04-26 10:41:37.99 UTC | 13 | 2021-10-26 10:51:07.273 UTC | null | null | null | null | 5,856,164 | null | 1 | 63 | ios|swift|uitabbarcontroller|uitabbar | 90,596 | <p>To change background colour of UITabBar</p>
<pre><code>TabBarController* Tcontroller =(TabBarController*)self.window.rootViewController;
Tcontroller.tabBar.barTintColor=[UIColor yourcolour];
</code></pre>
<p><strong>Swift 3</strong></p>
<p>Based on the code above, you can get it by doing this</p>
<pre><code>let ... |
62,846,123 | Getting Error from webpack-cli: "TypeError: merge is not a function" in webpack config | <p>I'm using webpack-merge to combine two webpack.config files together but I keep getting the error
"TypeError: merge is not a function when I run the command "webpack --config ./config/webpack.config.prod.js"</p>
<p>Has anybody else run across this issue?</p>
<p>webpack.config.prod.js</p>
<pre><code>co... | 62,846,324 | 2 | 0 | null | 2020-07-11 06:55:38.793 UTC | 9 | 2021-03-13 09:12:26.21 UTC | null | null | null | null | 3,448,008 | null | 1 | 48 | reactjs|webpack|webpack-4|webpack-cli|webpack-merge | 27,981 | <p>You are importing <code>merge</code> incorrectly. Try it like this:</p>
<pre class="lang-js prettyprint-override"><code>const { merge } = require('webpack-merge');
</code></pre>
<p><strong>UPD:</strong>
Based on the <a href="https://github.com/survivejs/webpack-merge/blob/50bf401c7f2d205721e8cfa9a03ea47cf80058ec/CHA... |
28,332,103 | Problems installing laravel with composer | <p><strong>Problem:</strong> I'm wanting to explore laravel 5, and failing miserably at installing it. I'm using this guide: <a href="http://laravel.com/docs/5.0">http://laravel.com/docs/5.0</a> and need someone to help me understand the instructions.</p>
<p><strong>Background and What I've Tried</strong></p>
<p>I'm ... | 28,332,285 | 3 | 0 | null | 2015-02-04 21:47:20.61 UTC | 6 | 2016-01-05 17:23:17.753 UTC | 2015-02-04 21:53:41.34 UTC | null | 1,163,740 | null | 1,163,740 | null | 1 | 10 | php|laravel|composer-php|laravel-5 | 43,932 | <p>Laravel is a PHP framework (makes writing PHP applications easy)</p>
<p>Composer is a PHP package and dependency manager. (makes installing and updating third party code libraries easy)</p>
<p>When you run</p>
<pre><code>$ composer global require "laravel/installer=~1.1"
</code></pre>
<p>You're using composer to... |
8,901,488 | Android: Java, C or C++? | <p>I wrote some simple apps in Android using Java.<br/>
But later I found this: </p>
<blockquote>
<p>It provides headers and libraries that allow you to build activities,
handle user input, use hardware sensors, access application resources,
and more, when programming in C or C++. (<a href="http://developer.andr... | 8,901,522 | 6 | 0 | null | 2012-01-17 20:43:33.357 UTC | 8 | 2020-11-25 09:48:09.75 UTC | null | null | null | null | 982,865 | null | 1 | 32 | java|android|c++|c | 26,435 | <p>The article you link to has good information. It also links to <a href="http://developer.android.com/sdk/ndk/overview.html" rel="noreferrer">http://developer.android.com/sdk/ndk/overview.html</a> which says: </p>
<blockquote>
<p>The NDK will not benefit most applications. As a developer, you need
to balance its... |
57,332,430 | adding width to drawer in flutter | <p>I want to be able to add width to this drawer because it takes up too much of the screen when open and I want to lessen the width a bit, is this possible and how would I do this?</p>
<p>here is my scaffold</p>
<pre><code>Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: ne... | 57,333,040 | 4 | 0 | null | 2019-08-02 19:28:21.617 UTC | 3 | 2022-02-13 16:57:27.6 UTC | null | null | null | null | 11,388,321 | null | 1 | 31 | flutter | 31,182 | <p>Wrap the Drawer widget inside a Container widget and pass the width parameter to the Container.</p>
<pre><code>drawer: Container(
width: 50,
child: Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
UserAccountsDrawerHeader(
... |
57,553,973 | Where should I place my Vaadin 10+ static files? | <p>In Vaadin 10-14, where should I place my static files, such as CSS, JavaScript, and Polymer templates? How about static files such as images?</p>
<p>Also, how do I import these files in Vaadin? Is there a difference between Vaadin 14 with npm and Vaadin 10-13 with bower?</p> | 57,553,974 | 3 | 1 | null | 2019-08-19 09:31:20.063 UTC | 9 | 2021-06-02 18:39:44.047 UTC | null | null | null | null | 3,358,029 | null | 1 | 19 | spring|polymer|vaadin|stylesheet|vaadin-flow | 7,963 | <p>All paths are relative to the project root, e.g. where the <code>pom.xml</code> file is located in a Maven project.</p>
<p>JavaScript imported using <code>@JsModule</code> uses <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode" rel="noreferrer">strict mode</a>. Among other thing... |
48,316,365 | React fragment shorthand failing to compile | <p>The project in question is using React-16.2.0 which has the capability to use Fragments and the Fragment shorthand.</p>
<p><a href="https://reactjs.org/blog/2017/11/28/react-v16.2.0-fragment-support.html" rel="noreferrer">https://reactjs.org/blog/2017/11/28/react-v16.2.0-fragment-support.html</a></p>
<p>While the ... | 48,803,293 | 3 | 1 | null | 2018-01-18 07:59:57.973 UTC | 7 | 2021-11-27 23:46:53.463 UTC | null | null | null | null | 4,182,529 | null | 1 | 45 | javascript|reactjs|create-react-app | 24,151 | <p>I think this is a reason:</p>
<p><a href="https://reactjs.org/blog/2017/11/28/react-v16.2.0-fragment-support.html#support-for-fragment-syntax" rel="noreferrer">https://reactjs.org/blog/2017/11/28/react-v16.2.0-fragment-support.html#support-for-fragment-syntax</a></p>
<p><strong><a href="https://i.stack.imgur.com/b... |
30,284,237 | What is the purpose of "uber mode" in hadoop? | <p>Hi I am a big data newbie. I searched all over the internet to find what exactly uber mode is. The more I searched the more I got confused. Can anybody please help me by answering my questions?</p>
<ul>
<li>What does uber mode do? </li>
<li>Does it works differently in mapred 1.x and 2.x?</li>
<li>And where can I f... | 31,250,087 | 4 | 0 | null | 2015-05-17 06:58:04.25 UTC | 16 | 2017-02-23 06:14:51.67 UTC | 2015-11-03 15:25:58.11 UTC | null | 861,423 | null | 2,120,416 | null | 1 | 30 | hadoop|mapreduce | 29,614 | <p><strong>What is UBER mode in Hadoop2?</strong> </p>
<p>Normally mappers and reducers will run by ResourceManager (RM), RM will create separate container for mapper and reducer.
Uber configuration, will allow to run mapper and reducers in the same process as the ApplicationMaster (AM). </p>
<p><strong>Uber jobs :... |
848,794 | Sending email in Java using Apache Commons email libs | <p>I am using Apache Commons Email library to send emails, but I am not able to send them via GMail SMTP server.<br>
Can anyone provide sample code which works with GMail SMTP server and others?</p>
<p>I am using the following code which does not work:</p>
<pre><code>String[] recipients = {"receiver@gmail.com"};
Sim... | 848,814 | 3 | 0 | null | 2009-05-11 16:02:57.673 UTC | 14 | 2015-10-01 15:41:47.683 UTC | 2012-05-18 13:14:11.987 UTC | null | 21,234 | null | 93,796 | null | 1 | 12 | java|email|smtp|gmail|apache-commons-email | 32,322 | <p>Sending emails to the GMail SMTP server requires authentication and SSL. The username and password is pretty straight forward. Make sure you have the following properties set to enable authentication and SSL and it should work.</p>
<pre><code>mail.smtp.auth=true
mail.smtp.starttls.enable=true
</code></pre>
<p>To t... |
980,337 | How to know if the code is inside TransactionScope? | <p>What is the best way to know if the code block is inside TransactionScope?<br>
Is Transaction.Current a realiable way to do it or there are any subtleties?<br>
Is it possible to access internal ContextData.CurrentData.CurrentScope (in System.Transactions) with reflection? If yes, how?</p> | 1,079,879 | 3 | 0 | null | 2009-06-11 10:14:26.007 UTC | 7 | 2020-09-09 14:33:06.027 UTC | 2016-04-03 05:54:48.21 UTC | null | 41,956 | null | 94,990 | null | 1 | 33 | c#|.net|transactionscope | 13,006 | <p>Here is more reliable way (as I said, Transaction.Current can be set manually and it doesn't always mean we are really in TransactionScope). It's also possible to get this information with reflection, but emiting IL works 100 times faster than reflection.</p>
<pre><code>private Func<TransactionScope> _getCurr... |
1,005,206 | Does SQLite lock the database file on reads? | <p>I'm investigating SQLite as a storage engine, and am curious to know whether SQLite locks the database file on reads.</p>
<p>I am concerned about read performance as my planned project will have few writes, but many reads. If the database does lock, are there measures that can be taken (such as memory caching) to ... | 1,005,218 | 3 | 0 | null | 2009-06-17 05:08:25.793 UTC | 13 | 2020-01-14 00:11:02.883 UTC | null | null | null | null | 64,053 | null | 1 | 49 | sqlite | 41,395 | <p>From its <a href="http://en.wikipedia.org/wiki/SQLite" rel="noreferrer">Wikipedia page</a>:</p>
<blockquote>
<p>Several computer processes or threads may access the same database without problems. Several read accesses can be satisfied in parallel.</p>
</blockquote>
<p>More precisely, from its <a href="http://ww... |
683,339 | How do I find the absolute position of an element using jQuery? | <p>Is there a way of finding the absolute position of an element, i.e. relative to the start of the window, using jQuery?</p> | 683,564 | 3 | 1 | null | 2009-03-25 20:36:52.21 UTC | 66 | 2022-06-28 10:17:46.257 UTC | 2009-03-26 01:30:01.223 UTC | null | 45,433 | akshat | 29,653 | null | 1 | 425 | javascript|jquery | 383,883 | <p><a href="http://docs.jquery.com/CSS/offset" rel="noreferrer"><code>.offset()</code></a> will return the offset position of an element as a simple object, eg:</p>
<pre><code>var position = $(element).offset(); // position = { left: 42, top: 567 }
</code></pre>
<p>You can use this return value to position other elem... |
39,580,063 | Remove the first N items that match a condition in a Python list | <p>If I have a function <code>matchCondition(x)</code>, how can I remove the first <code>n</code> items in a Python list that match that condition?</p>
<p>One solution is to iterate over each item, mark it for deletion (e.g., by setting it to <code>None</code>), and then filter the list with a comprehension. This requ... | 39,580,621 | 7 | 0 | null | 2016-09-19 18:46:05.587 UTC | 13 | 2019-04-27 15:29:55.987 UTC | 2016-09-20 14:49:29.863 UTC | null | 400,617 | null | 939,259 | null | 1 | 59 | python|list|list-comprehension | 8,167 | <p>One way using <a href="https://docs.python.org/3/library/itertools.html#itertools.filterfalse"><code>itertools.filterfalse</code></a> and <a href="https://docs.python.org/3/library/itertools.html#itertools.count"><code>itertools.count</code></a>:</p>
<pre><code>from itertools import count, filterfalse
data = [1, 1... |
39,828,043 | Gradle error: Write access is allowed from event dispatch thread only in Android Studio | <p>After updating Android Studio to version 2.2 (on Windows 10) and somehow next morning I received such error when gradle built on any project: </p>
<blockquote>
<p>Write access is allowed from event dispatch thread only</p>
</blockquote>
<p>Despite that gradlew -build command worked and completed successfully.
I... | 39,828,044 | 5 | 1 | null | 2016-10-03 09:10:11.537 UTC | 21 | 2019-07-03 04:05:30.46 UTC | 2019-07-03 04:04:44.86 UTC | null | 107,625 | null | 3,379,437 | null | 1 | 122 | android|android-studio|gradle|android-gradle-plugin|gradlew | 61,216 | <p>So the problem was concluded in that Android Studio conflicted with my installed JDK version, so it was resolved when I checked JDK location (File → Project Structure → SDK Location), ticked 'Use embedded JDK' checkbox and set JDK location to 'path to Android Studio'\Android Studio\jre</p> |
6,434,088 | What specific use cases call for BOSH over WebSockets and long-polling? | <p><a href="http://xmpp.org/extensions/xep-0124.html" rel="noreferrer">BOSH</a> is...</p>
<blockquote>
<p>a transport protocol that emulates the semantics of a long-lived, bidirectional TCP connection between two entities (such as a client and a server) by efficiently using multiple synchronous HTTP request/response... | 6,442,488 | 1 | 0 | null | 2011-06-22 01:59:14.4 UTC | 34 | 2017-04-25 14:33:19.903 UTC | 2017-04-25 14:33:19.903 UTC | null | 1,028,230 | null | 102,704 | null | 1 | 43 | http|comet|websocket | 17,519 | <p><strong>First let me address WebSockets readiness</strong>:</p>
<p>WebSockets implementation of the <a href="https://datatracker.ietf.org/doc/html/draft-hixie-thewebsocketprotocol-76" rel="nofollow noreferrer">Hixie-76</a> protocol are shipped and enabled by default in Chrome, Safari and iOS (iPhone and iPad). The H... |
24,430,121 | How to use font awesome in a fxml project (javafx) | <p>I want to use font font awesome in my project but I have no idea how to use font awesome in my project.</p>
<p>I had found some example but they can't be use in fxml.</p>
<p><a href="https://bitbucket.org/Jerady/fontawesomefx" rel="noreferrer">font awesome javafx</a> </p>
<p>I need help how to use it in my projec... | 24,433,222 | 6 | 0 | null | 2014-06-26 12:07:37.54 UTC | 2 | 2019-05-17 14:07:40.307 UTC | 2018-10-18 18:33:26.633 UTC | null | 2,503,722 | null | 3,749,316 | null | 1 | 14 | java|javafx|javafx-2|javafx-8|fxml | 49,818 | <p>I think this is what you need <a href="http://fxexperience.com/controlsfx/features/" rel="nofollow noreferrer">ControlFX</a> that include font awesome support.
see the <a href="https://controlsfx.bitbucket.io/" rel="nofollow noreferrer">javadoc</a> for more info (But I tested it one day and it works fine)</p> |
5,965,007 | How can I set a fixed height for my entire webpage? | <p>I thought this was a simple fix:</p>
<pre><code>body
{
height: 1054px;
}
html
{
height: 1054px;
}
</code></pre>
<p>Wouldn't this set the max height of the page to <code>1054px</code>? I have also tried these workarounds but they didn't work with what I wanted:</p>
<pre><code>html
{
overflow: hidden;
}... | 5,965,074 | 3 | 3 | null | 2011-05-11 13:25:28.367 UTC | 3 | 2012-09-08 22:00:20.907 UTC | 2011-05-11 13:32:29.66 UTC | null | 20,578 | null | 650,489 | null | 1 | 6 | html|css | 88,572 | <p><code>width</code> and <code>height</code> do set absolute widths and heights of an element respectively. <code>max-width</code>, <code>max-height</code>, <code>min-width</code> and <code>min-height</code> are seperate properties.</p>
<p>Example of a page with 1054px square content and a full background:</p>
<pre>... |
5,747,401 | How to replace value in list at same collection location | <p>How do I replace a value in a collection list at the same location?</p>
<pre><code>0 = cat
1 = dog
2 = bird
</code></pre>
<p>replace <code>2</code> with <code>snail</code>?</p> | 5,747,420 | 3 | 1 | null | 2011-04-21 17:08:23.23 UTC | 3 | 2019-01-16 12:19:36.703 UTC | 2013-05-24 06:47:54.54 UTC | null | 1,049,308 | null | 230,434 | null | 1 | 39 | c# | 80,829 | <p>Do you mean:</p>
<pre><code>yourCollection[2] = "Snail";
</code></pre> |
5,993,621 | Fastest way to search a list in python | <p>When you do something like <code>"test" in a</code> where <code>a</code> is a list does python do a sequential search on the list or does it create a hash table representation to optimize the lookup? In the application I need this for I'll be doing a lot of lookups on the list so would it be best to do something lik... | 5,993,659 | 4 | 0 | null | 2011-05-13 14:45:38.74 UTC | 11 | 2016-09-14 12:32:16.823 UTC | null | null | null | null | 38 | null | 1 | 39 | python|list|search|find|set | 62,423 | <blockquote>
<p>Also note that the list of values I'll have won't have duplicate data and I don't actually care about the order it's in; I just need to be able to check for the existence of a value.</p>
</blockquote>
<p>Don't use a list, use a <a href="http://docs.python.org/library/stdtypes.html#set-types-set-froze... |
5,922,287 | Rails 3: yield/content_for with some default value? | <p>Is there any way to detect if <code>#content_for</code> was actually applied to a <code>yield</code> scope in Rails?</p>
<p>A classic example being something like:</p>
<pre><code><title><%= yield :page_title %></title>
</code></pre>
<p>If a template doesn't set that with</p>
<pre><code><% co... | 5,922,305 | 4 | 0 | null | 2011-05-07 16:06:28.243 UTC | 12 | 2014-10-20 11:19:18.113 UTC | null | null | null | null | 322,122 | null | 1 | 64 | ruby-on-rails|ruby|yield | 17,517 | <p>You can use <code>content_for?</code> to check if there is content with a specific name:</p>
<pre><code><% if content_for?(:page_title) %>
<%= yield(:page_title) %>
<% else %>
<%= default_page_title %>
<% end %>
</code></pre>
<p>or</p>
<pre><code><%= content_for?(:page_title) ... |
32,163,517 | Run javascript code in Webview | <p>I have a webview i am using in android and I'm trying to trigger javascript on a button click. I'm trying to use the code below to change the color of the class to red. But I cant seem to get it working</p>
<pre><code>final WebView wb=(WebView)findViewById(R.id.webView2);
wb.loadUrl("javascript:"
+ ... | 32,163,655 | 2 | 1 | null | 2015-08-23 05:33:41.67 UTC | 12 | 2020-01-05 19:26:41.02 UTC | null | null | null | null | 2,423,476 | null | 1 | 20 | javascript|android|webview | 26,254 | <p>From kitkat onwards use evaluateJavascript method instead loadUrl to call the javascript functions like below</p>
<pre><code> if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
webView.evaluateJavascript("var FunctionOne = function () {"
+ " try{document.getE... |
5,617,175 | ArrayList replace element if exists at a given index? | <p>How to replace element if exists in an ArrayList at a given index?</p> | 9,700,356 | 5 | 0 | null | 2011-04-11 05:39:54.787 UTC | 7 | 2020-07-12 21:01:30.17 UTC | 2018-03-14 12:39:11.4 UTC | null | 1,000,551 | null | 689,853 | null | 1 | 85 | java|arraylist | 89,150 | <pre><code> arrayList.set(index i,String replaceElement);
</code></pre> |
5,813,077 | iPhone/iOS JSON parsing tutorial | <p>As a learning experience, I want to make an iPhone application that calls a webserver/webservice, retrieves a JSON response, and uses that response to populate the rows of a <code>UITableView</code> (assuming it converts the JSON into an <code>NSArray</code> first).</p>
<p>Anyone know of anything that might be usef... | 5,813,223 | 6 | 0 | null | 2011-04-28 02:54:24.97 UTC | 81 | 2016-12-20 06:20:45.203 UTC | 2016-12-20 06:20:45.203 UTC | null | 4,078,527 | null | 480,807 | null | 1 | 103 | iphone|objective-c|ios|json|uitableview | 137,155 | <p>You will love this <a href="https://github.com/stig/json-framework/">framework</a>.</p>
<p>And you will love this <a href="http://ditchnet.org/httpclient/">tool</a>.</p>
<p>For learning about JSON you might like this <a href="http://json.org/">resource</a>.</p>
<p>And you'll probably love this <a href="http://blo... |
9,969,833 | Programmatically determine via ifdef if a label is defined within a Translation Unit | <p>I have the following bit of code, I expect that given cstdio is included that the first line will be printed, however the second line is printed. </p>
<p>What am I doing wrong? is it possible to know if labels such as printf or strncmp or memcpy have been defined in the current translation unit at compile time?</p>... | 9,969,890 | 3 | 6 | null | 2012-04-02 01:12:00.92 UTC | 8 | 2012-04-02 01:47:37.907 UTC | 2012-04-02 01:47:37.907 UTC | null | 755,004 | null | 755,004 | null | 1 | 2 | c++|label|conditional-compilation | 366 | <p><code>#ifdef</code> only applies to preprocessor macros, defined with <code>#define</code>, not to symbols like function names and variables. You can imagine the preprocessor as an actual separate preliminary step, like running your code through a perl script, that occurs before the "real" compiler gets a crack at ... |
1,320,931 | How to correctly use ABPersonViewController with ABPeoplePickerNavigationController to view Contact information? | <p>Update 9/2/10: This code no longer works as of the iOS 4 update--it fails with an internal assertion. There is now a great Address Book API example available in the iPhone SDK Reference Library called "QuickContacts."</p>
<p>The example code is available here; it will help you solve this problem:
<a href="http://de... | 1,356,215 | 1 | 0 | null | 2009-08-24 07:34:49.757 UTC | 9 | 2012-05-16 05:14:57.353 UTC | 2012-04-20 07:00:15.007 UTC | null | 579,628 | null | 153,081 | null | 1 | 19 | iphone|ios|addressbook | 31,333 | <p>Just a heads-up to anyone who runs into this problem themselves: I was able to product the correct behavior by instantiating the ABPersonViewController in its delegate's <strong>viewDidLoad()</strong> method as below:</p>
<p>As before, here's my <strong>ABPeoplePickerNavigationController delegate's</strong> method:... |
1,270,001 | Visual Studio 2008 Output - Hide dll loads and unloads | <p>Visual Studio automatically displays dll loads/unloads in its output panel, like so:</p>
<pre><code>'DialogAppDEBUG.exe': Unloaded 'C:\WINDOWS\system32\wbem\fastprox.dll'
'DialogAppDEBUG.exe': Unloaded 'C:\WINDOWS\system32\ntdsapi.dll'
'DialogAppDEBUG.exe': Unloaded 'C:\WINDOWS\system32\wldap32.dll'
'DialogAppDEBUG... | 1,682,418 | 1 | 1 | null | 2009-08-13 04:17:00.34 UTC | 2 | 2009-11-05 18:00:00.907 UTC | null | null | null | null | 136,785 | null | 1 | 28 | visual-studio-2008|panel | 3,794 | <p>Asked the same thing today, and the answer was as simple as:</p>
<blockquote>
<p>Right click in the Output window when
you're running your program and
uncheck all of the messages you don't
want to see (like Thread Exit
messages).</p>
</blockquote>
<p>In your case, uncheck "Module Load messages"</p> |
19,365,758 | How do I store a value from a SELECT statement in a variable in a MySQL Stored Procedure? | <p>This may be a super easy question to answer, but I am unsure how to do this correctly.</p>
<p>Here is my query within the procedure:</p>
<pre><code>SELECT COUNT(barcode) AS count FROM movieitems;
</code></pre>
<p>How do I store the return value of this statement (for example, the value in <code>count</code> is <c... | 19,365,810 | 2 | 0 | null | 2013-10-14 17:25:56.073 UTC | 6 | 2013-10-14 17:30:40.073 UTC | null | null | null | null | 546,509 | null | 1 | 29 | mysql|sql|stored-procedures | 84,020 | <p>In a stored procedure do this:</p>
<pre><code>SELECT COUNT(barcode) AS count into @myVar FROM movieitems;
</code></pre> |
41,126,943 | Wireshark - you don't have permission to capture on that device mac | <p>I installed Wireshark and during the installation it showed an error but the installation itself completed. When I ran the program and tried to capture packets on my network, it showed this error:</p>
<p><img src="https://i.stack.imgur.com/IWFlY.png" alt="You don't have permission to capture on that device" /></p>
<... | 42,368,892 | 9 | 0 | null | 2016-12-13 17:18:45.497 UTC | 28 | 2021-12-23 07:43:23.017 UTC | 2020-06-20 09:12:55.06 UTC | null | -1 | null | 7,263,962 | null | 1 | 46 | macos|permissions|wireshark | 83,014 | <p>According to User: <a href="https://ask.wireshark.org/questions/578/mac-os-cant-detect-any-interface" rel="noreferrer">gmale's answer on ask.wireshark.org</a>, he solved his problem in this way and I'm sure that it could solve yours as well. It says:</p>
<p>1- <strong>Open Terminal</strong></p>
<p>To see your exac... |
19,242,747 | JavaFX Editable ComboBox : Showing toString on item selection | <p>I have a <code>ComboBox<Person></code>, of type <code>Person</code>, in which I have added few object of <code>Person</code> class.</p>
<p>I have used <code>setCellFactory(Callback)</code> method to show <code>Person</code> name in <code>ComboBox</code> drop down</p>
<pre><code>combobox.setCellFactory(
new... | 20,470,223 | 2 | 0 | null | 2013-10-08 08:30:02.197 UTC | 9 | 2021-02-11 06:58:55.677 UTC | 2021-02-11 06:58:55.677 UTC | null | 2,164,365 | null | 1,795,947 | null | 1 | 12 | combobox|javafx-2|javafx|javafx-8 | 18,974 | <p>Here is an answer to my own question which I found best after many efforts and corrections.</p>
<pre><code>mainComboBox.setButtonCell(
new ListCell<Object>() {
@Override
protected void updateItem(Object t, boolean bln) {
super.updateItem(t, bln);
if (bln) {
... |
19,167,901 | File not shown in git diff after a git add. How do I know it will be committed? | <p>I had an untracked file which was not appearing in a git diff and when I added it to the 'changes to be committed' area, it still doesn't show up in the git diff. I shows up with a <code>git status -v</code> when I do a diff against HEAD.</p>
<p>I'm still very new to git, so could anyone please tell me if the file ... | 19,168,261 | 5 | 0 | null | 2013-10-03 19:44:13.633 UTC | 3 | 2018-07-31 15:28:26.8 UTC | 2016-09-19 21:33:58.227 UTC | null | 2,301,450 | null | 1,732,772 | null | 1 | 41 | git|file|commit|git-commit|git-diff | 32,330 | <p>If you'd like to see the <em>staged</em> changes in a diff, you can still use <code>git diff</code>, you just need to pass the <code>--staged</code> flag:</p>
<pre class="lang-sh prettyprint-override"><code>david@pav:~/dummy_repo$ echo "Hello, world" > hello.txt
david@pav:~/dummy_repo$ git status
# On branch mas... |
26,538,421 | How do I play sound on button click in android studio? | <p>I would like that when the button is pressed the sound file starts to play.I have already created the raw folder and put the .wav file there. The problem is that i don't know how to do this thing. I checked similar questions here but they don't seem to fix my problem. What should i do? Thank you in advance.</p>
<p>... | 26,538,468 | 1 | 0 | null | 2014-10-23 22:16:24.727 UTC | 2 | 2020-12-20 00:18:20.263 UTC | 2020-12-20 00:18:20.263 UTC | null | 1,783,163 | null | 4,135,362 | null | 1 | 2 | android|button|android-studio | 76,064 | <pre><code> Log.v(TAG, "Initializing sounds...");
final MediaPlayer mp = MediaPlayer.create(this, R.raw.sound);
Button play_button = (Button)this.findViewById(R.id.button);
play_button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
... |
26,787,628 | How do I specify relative paths in CMAKE? | <p>I want to specify a path that is relative to the current directory within CMake and have not been able to find a solution.</p>
<p>My project lies in a path something like:</p>
<pre><code>C:/Projects/ProjectA/CMakeLists.txt
</code></pre>
<p>and I want to specify the name of the relative path of the following director... | 26,787,695 | 1 | 0 | null | 2014-11-06 19:16:29.263 UTC | 1 | 2022-03-21 16:02:50.793 UTC | 2022-03-21 16:00:39.843 UTC | null | 212,378 | null | 1,620,721 | null | 1 | 24 | cmake | 38,456 | <p>The is almost exactly the same, except that you have allow for CMake to run in another location for "out-of-tree" builds. You do this by specifying the path relative to <code>${CMAKE_CURRENT_SOURCE_DIR}</code>, which is the directory containing the current CMakeLists.txt file.</p>
<pre><code>${CMAKE_CURRE... |
36,215,244 | Disable entire form elements with respect to a state. React | <p>I am disabling the inputs using the <code>isFetching</code> prop,
but this is getting reduntant as I have to keep this in every input field.
Is there a way to disable the entire form?
Like a <code>disable</code> property in <code><form></code> tag or something?</p>
<pre><code><form>
<input type="t... | 36,216,001 | 3 | 0 | null | 2016-03-25 06:39:34.677 UTC | 5 | 2017-09-18 22:30:27.213 UTC | 2017-04-23 13:02:58.84 UTC | null | 4,205,470 | null | 3,783,888 | null | 1 | 29 | javascript|html|forms|reactjs | 36,760 | <p>I think this should solve your problem <a href="https://stackoverflow.com/a/17186342/3298693">https://stackoverflow.com/a/17186342/3298693</a>.</p>
<p>You should insert your form inside an element <code><fieldset disabled="disabled"></code>. This will make the whole form disabled.</p> |
42,467,663 | How to Async/await in List.forEach() in Dart | <p>I'm writing some kind of bot (command line application) and I'm having trouble with async execution when I'm using the "forEach" method.
Here is a simplified code of what I'm trying to do :</p>
<pre><code>main() async {
print("main start");
await asyncOne();
print("main end");
}
... | 42,467,822 | 6 | 1 | null | 2017-02-26 11:02:45.19 UTC | 13 | 2022-05-10 22:31:06.087 UTC | 2021-04-14 05:07:56.423 UTC | user10563627 | null | null | 7,091,129 | null | 1 | 96 | flutter|dart|asynchronous|foreach | 28,067 | <p>I don't think it's possible to achieve what you want with the <code>forEach</code> method. However it will work with a <code>for</code> loop. Example;</p>
<pre><code>asyncOne() async {
print("asyncOne start");
for (num number in [1, 2, 3])
await asyncTwo(number);
print("asyncOne end");
}
</code></pre> |
51,444,059 | How to iterate over two dataloaders simultaneously using pytorch? | <p>I am trying to implement a Siamese network that takes in two images. I load these images and create two separate dataloaders.</p>
<p>In my loop I want to go through both dataloaders simultaneously so that I can train the network on both images.</p>
<pre><code>for i, data in enumerate(zip(dataloaders1, dataloaders2... | 51,444,290 | 5 | 2 | null | 2018-07-20 13:50:42.443 UTC | 8 | 2021-12-09 07:07:02.86 UTC | null | null | null | null | 7,560,762 | null | 1 | 13 | python|machine-learning|zip|conv-neural-network|pytorch | 27,493 | <p>I see you are struggling to make a right dataloder function. I would do:</p>
<pre><code>class Siamese(Dataset):
def __init__(self, transform=None):
#init data here
def __len__(self):
return #length of the data
def __getitem__(self, idx):
#get images and labels here
... |
32,656,837 | Changing the drawable size inside a button | <p>I want to create a <code>Button</code> like this:</p>
<p><a href="https://i.stack.imgur.com/yynI2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yynI2.png" alt="Button Example" /></a></p>
<p><strong>Here is my code:</strong></p>
<pre><code><Button
android:layout_width="80dp"
android:... | 32,657,198 | 9 | 2 | null | 2015-09-18 16:27:49.203 UTC | 2 | 2022-05-19 00:32:23.09 UTC | 2022-01-03 08:18:42.103 UTC | null | 4,742,830 | null | 4,742,830 | null | 1 | 14 | android|android-layout|android-drawable|android-button|android-image | 54,656 | <h1>Solution 1:</h1>
<p>Adding a drawable to a button has very limited functions. You can't change the drawable size, so the best way to fix it is to add a button with an image view beside it in a linear layout like this:</p>
<pre><code><LinearLayout
android:layout_width="wrap_content"
android:layout_heigh... |
32,838,760 | How to resolve relative paths in python? | <p>I have Directory structure like this</p>
<pre><code>projectfolder/fold1/fold2/fold3/script.py
</code></pre>
<p>now I'm giving script.py a path as commandline argument of a file which is there in </p>
<pre><code>fold1/fold_temp/myfile.txt
</code></pre>
<p>So basically I want to be able to give path in this way </... | 32,839,385 | 4 | 2 | null | 2015-09-29 08:01:04.72 UTC | 8 | 2021-09-02 16:50:36.153 UTC | 2017-05-23 11:54:05.047 UTC | null | -1 | null | 5,246,524 | null | 1 | 30 | python|path | 54,410 | <pre><code>import os
dir = os.path.dirname(__file__)
path = raw_input()
if os.path.isabs(path):
print "input path is absolute"
else:
path = os.path.join(dir, path)
print "absolute path is %s" % path
</code></pre>
<p>Use os.path.isabs to judge if input path is absolute or relative, if it is relative, then u... |
9,487,077 | How to view the log of all commands? | <p>I'm trying to view all commands that I've entered into the unix environment in my Git Bash.</p>
<p>So I'm not trying to view the list of possible commands for Git Hub. Neither am I trying to view the logs for pushes and pulls.</p>
<p>I just want to view what I entered in the command line. This is because I recentl... | 9,487,703 | 3 | 0 | null | 2012-02-28 17:47:50.733 UTC | 3 | 2016-06-16 19:51:32.673 UTC | 2013-04-30 04:32:14.373 UTC | null | 635,608 | null | 1,110,767 | null | 1 | 14 | unix|logging|github|git-bash | 62,128 | <p>You can do this with <code>cat $HISTFILE</code>.</p>
<p>Bash by default stores the last 500 commands in a history file, most likely called ~/.bash_history. This file is in the variable $HISTFILE (and the size is in $HISTFILESIZE). You can get the path to the history file with <code>echo $HISTFILE</code>.</p> |
9,061,800 | How do I autocrop a UIImage? | <p>I have a UIImage which contains a shape; the rest is transparent. I'd like to get another UIImage by cropping out as much of the transparent part as possible, still retaining all of the non-transparent pixels - similar to the autocrop function in GIMP. How would I go about doing this?</p> | 13,922,413 | 6 | 0 | null | 2012-01-30 09:33:01.32 UTC | 16 | 2021-06-28 20:15:26.703 UTC | 2012-01-31 09:50:15.123 UTC | null | 30,461 | null | 15,371 | null | 1 | 15 | ios|cocoa-touch|uikit|uiimage|core-graphics | 6,565 | <p>This approach may be a little more invasive than what you were hoping for, but it gets the job done. What I'm doing is creating a bitmap context for the UIImage, obtaining a pointer to the raw image data, then sifting through it looking for non-transparent pixels. My method returns a CGRect which I use to create a n... |
9,459,030 | Django when to use teardown method | <p>According to the docs:</p>
<blockquote>
<p>A TestCase, on the other hand, does not truncate tables and reload
initial data at the beginning of a test. Instead, it encloses the test
code in a database transaction that is rolled back at the end of the
test. It also prevents the code under test from issuing an... | 9,459,139 | 3 | 0 | null | 2012-02-27 01:34:52.637 UTC | 4 | 2013-07-22 00:00:52.157 UTC | 2012-02-27 10:36:02.08 UTC | null | 99,876 | null | 131,238 | null | 1 | 30 | django | 25,095 | <p>For the purposes of the database, <code>tearDown</code> is pretty pointless, because each test is run in a transaction. However, not everything in a test involves the database. You might test file creation/reading, spin off processes, open network connections, etc. These types of things usually require you to "close... |
31,105,846 | How to send a pdf file from Node/Express app to the browser | <p>In my Node/Express app I have the following code, which suppose to read a PDF document from a file, and send it to the browser:</p>
<pre><code>var file = fs.createReadStream('./public/modules/datacollectors/output.pdf', 'binary');
var stat = fs.statSync('./public/modules/datacollectors/output.pdf');
res.setHeader('... | 31,106,110 | 6 | 1 | null | 2015-06-28 23:26:13.76 UTC | 13 | 2022-03-08 11:53:25.993 UTC | 2015-06-29 00:34:08.527 UTC | null | 1,266,650 | null | 518,012 | null | 1 | 43 | node.js|express | 115,805 | <p>You have to pipe from Readable Stream to Writable stream not the other way around:</p>
<pre><code>var file = fs.createReadStream('./public/modules/datacollectors/output.pdf');
var stat = fs.statSync('./public/modules/datacollectors/output.pdf');
res.setHeader('Content-Length', stat.size);
res.setHeader('Content-Typ... |
34,204,447 | git rebase --continue no changes | <p>I have two branches with two features: <code>banch_1</code> and <code>branch_2</code>.
<code>branch_2</code> uses feature from <code>branch_1</code>.
I've made changes in the <code>branch_1</code> and want to rebase <code>branch_2</code> on <code>branch_1</code> to get changes from <code>branch_1</code> into <code>b... | 34,205,948 | 1 | 2 | null | 2015-12-10 14:30:48.943 UTC | 4 | 2018-05-15 09:59:03.857 UTC | 2015-12-10 14:33:49.123 UTC | null | 1,401,900 | null | 1,858,864 | null | 1 | 50 | git|git-rebase | 19,577 | <p>If I understand correctly, when you're getting the merge conflict, you're accepting all the changes from <code>branch_1</code>, meaning that that particular commit from <code>branch_2</code> is irrelevant - any changes in that commit are identical to the incoming changes from <code>branch_1</code>.</p>
<p>When git ... |
22,627,473 | hive check comma separated String contains a string | <p>I have a column in hive table <code>list_ids</code> which is a list of ids stored as comma separated string.</p>
<p>how can I write a query for this column to check if it stores a particular id </p>
<p>Example:</p>
<pre><code> list_ids = "abc,cde,efg"
</code></pre>
<p>I want to something like </p>
<pre><code> s... | 22,820,346 | 3 | 0 | null | 2014-03-25 07:00:38.577 UTC | 7 | 2018-05-04 17:30:15.367 UTC | 2014-03-25 07:05:28.86 UTC | null | 1,120,015 | null | 2,978,621 | null | 1 | 21 | string|hive | 53,750 | <p>Use Hive standard functions <code>split</code> and <code>array_contains</code></p>
<p><code>split(string str, string pat)</code> returns <code>array<string></code> by splitting str around pat (regular expression)</p>
<p><code>array_contains(array<T>, value)</code> returns <code>true</code> if array con... |
22,799,300 | How to unpack a Series of tuples in Pandas? | <p>Sometimes I end up with a series of tuples/lists when using Pandas. This is common when, for example, doing a group-by and passing a function that has multiple return values:</p>
<pre><code>import numpy as np
from scipy import stats
df = pd.DataFrame(dict(x=np.random.randn(100),
y=np.repeat(l... | 36,816,769 | 5 | 1 | null | 2014-04-02 00:14:32.223 UTC | 12 | 2022-02-26 05:58:31.367 UTC | null | null | null | null | 1,533,576 | null | 1 | 44 | python|pandas | 34,761 | <p>maybe this is most strightforward (most pythonic i guess):</p>
<pre><code>out.apply(pd.Series)
</code></pre>
<p>if you would want to rename the columns to something more meaningful, than:</p>
<pre><code>out.columns=['Kstats','Pvalue']
</code></pre>
<p>if you do not want the default name for the index:</p>
<pre>... |
7,519,467 | Line plot with arrows in matplotlib | <p>I have a line graph that I want to plot using arrows instead of lines. That is, the line between successive pairs of points should be an arrow going from the first point to the second point.</p>
<p>I know of the <code>arrow</code> function, but that only seems to do individual arrows. Before I work out a way to try... | 7,543,518 | 2 | 0 | null | 2011-09-22 18:13:29.193 UTC | 11 | 2011-09-25 03:48:38.417 UTC | null | null | null | null | 1,912 | null | 1 | 35 | python|plot|matplotlib | 28,290 | <p>You can do this with <a href="http://matplotlib.sourceforge.net/api/pyplot_api.html#matplotlib.pyplot.quiver" rel="noreferrer">quiver</a>, but it's a little tricky to get the keyword arguments right.</p>
<pre><code>import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(0, 2*np.pi, 10)
y = np.sin(x)
pl... |
7,122,325 | SocketException: Permission Denied? | <p>My LogCat reads:</p>
<pre><code>08-19 09:29:01.964: WARN/System.err(311): java.net.SocketException: Permission denied
08-19 09:29:02.204: WARN/System.err(311): at org.apache.harmony.luni.platform.OSNetworkSystem.createStreamSocketImpl(Native Method)
08-19 09:29:02.214: WARN/System.err(311): at org.apache.ha... | 7,122,367 | 2 | 1 | null | 2011-08-19 13:31:19.653 UTC | 4 | 2016-07-19 14:56:39.483 UTC | 2011-08-23 02:22:18.507 UTC | null | 834,063 | null | 834,063 | null | 1 | 50 | android|url|inputstream|permission-denied|socketexception | 51,423 | <p>Add Internet permission to your manifest:</p>
<pre><code><uses-permission android:name="android.permission.INTERNET"/>
</code></pre> |
32,062,051 | How to make 'submit' button disabled? | <p>How to disable the "Submit" button until the form is valid? </p>
<p>Does angular2 have an equivalent to ng-disabled that can be used on the Submit button? (ng-disabled doesn't work for me.)</p> | 32,082,365 | 8 | 1 | null | 2015-08-18 01:09:33.247 UTC | 16 | 2019-09-06 04:39:34.687 UTC | 2019-09-06 04:38:16.147 UTC | null | 5,468,463 | null | 865,955 | null | 1 | 172 | forms|angular | 286,682 | <p>As seen in this Angular <a href="https://github.com/angular/angular/blob/57496926cad0d840092c7623079883983ca07d53/modules/examples/src/model_driven_forms/index.ts" rel="noreferrer">example</a>, there is a way to disable a button until the whole form is valid:</p>
<pre><code><button type="submit" [disabled]="!ngF... |
19,067,632 | Difference between LET and SETQ? | <p>I'm programming on Ubuntu using GCL. From the documentation on Common Lisp from various sources, I understand that <code>let</code> creates <em>local</em> variables, and <code>setq</code> sets the values of <em>existing</em> variables. In cases below, I need to create two variables and sum their values.</p>
<h3>Usi... | 19,067,897 | 4 | 1 | null | 2013-09-28 13:44:04.43 UTC | 8 | 2020-06-12 14:39:34.633 UTC | 2020-06-20 09:12:55.06 UTC | null | -1 | null | 2,826,354 | null | 1 | 32 | lisp|common-lisp | 16,208 | <p><code>setq</code> <em>assigns</em> a value to a variable, whereas <code>let</code> introduces new variables/bindings. E.g., look what happens in </p>
<pre><code>(let ((x 3))
(print x) ; a
(let ((x 89))
(print x) ; b
(setq x 73)
(print x)) ; c
(print x)) ; d
3 ; a
89 ; b
73 ; ... |
18,933,321 | Can I safely delete contents of Xcode Derived data folder? | <p>I am running low on disk space and checked through a third party utility that among other things that ~/Library/Developer/Xcode/DerivedData directory is taking about 22GB of disk space.</p>
<p>I searched stackoverflow and found this post </p>
<p><a href="https://stackoverflow.com/questions/7279141/what-can-i-safel... | 18,933,382 | 12 | 1 | null | 2013-09-21 13:46:21.453 UTC | 96 | 2022-06-15 02:58:22.56 UTC | 2017-05-23 12:02:51.417 UTC | null | -1 | null | 1,058,419 | null | 1 | 336 | ios|xcode | 258,753 | <p>Yes, you can delete all files from <code>DerivedData</code> sub-folder <code>(Not DerivedData Folder)</code> directly. </p>
<p>That will not affect your project work. Contents of <code>DerivedData</code> folder is generated during the build time and you can delete them if you want. It's not an issue.</p>
<p>The co... |
37,959,751 | How to use Font Awesome icon in android application? | <p>I want to use Font Awesome's icon set in my android application. I have some <code>TextView</code> to set those icons. I don't want to use any png image. My Textview is like this -></p>
<pre><code><TextView
android:id="@+id/userLogin"
android:text="Login Now"
android:clickable="true"
android:onCl... | 37,959,881 | 11 | 2 | null | 2016-06-22 06:01:46.247 UTC | 10 | 2022-07-01 14:54:58.413 UTC | null | null | null | user6355963 | null | null | 1 | 23 | android|textview | 45,757 | <p>You can follow this <a href="https://stackoverflow.com/questions/15210548/how-to-use-a-icons-and-symbols-from-font-awesome-on-native-android-application">answer</a>.</p>
<p>First Download the fontawesome.ttf from <a href="http://fontawesome.io/" rel="noreferrer">here</a>. And put the file in <strong>asset/fontawesom... |
36,715,776 | Upload pdf file using Laravel 5 | <p>I'm using Laravel 5.2 and I want to make a form which can upload a pdf file with it. I want to add that file on folder "files" in "public" folder. <br> <br>here is my view:</p>
<pre><code><div class="form-group">
<label for="upload_file" class="control-label col-sm-3">Upload File</label>
... | 36,715,965 | 6 | 1 | null | 2016-04-19 10:31:44.003 UTC | 1 | 2020-02-03 06:02:36.463 UTC | null | null | null | null | 2,330,708 | null | 1 | 6 | php|laravel|http|file-upload|laravel-5 | 50,406 | <p>First you should add <code>enctype="multipart/form-data"</code> to your <code><form></code> tag. Then in your controller handle the file upload as follow:</p>
<pre><code>class FileController extends Controller
{
// ...
public function upload(Request $request)
{
$uniqueFileName = uniqid() ... |
37,087,325 | How to convert string to unicode(UTF-8) string in Swift? | <p>How to convert string to unicode(UTF-8) string in Swift?</p>
<p>In Objective I could write smth like that:</p>
<pre><code>NSString *str = [[NSString alloc] initWithUTF8String:[strToDecode cStringUsingEncoding:NSUTF8StringEncoding]];
</code></pre>
<p>how to do smth similar in Swift?</p> | 37,087,408 | 3 | 2 | null | 2016-05-07 10:24:43.25 UTC | 3 | 2021-06-29 10:10:18.897 UTC | null | null | null | null | 4,702,826 | null | 1 | 17 | ios|swift|unicode|utf-8|utf-16 | 77,186 | <p>Use this code,</p>
<pre><code>let str = String(UTF8String: strToDecode.cStringUsingEncoding(NSUTF8StringEncoding))
</code></pre>
<p>hope its helpful</p> |
21,266,948 | Use git to manage home directory | <p>I'd like to create <strong>one single git repo</strong> in my Linux $HOME directory. In this repo - obviously - I could add everything under version control, but this wouldn't make any sense. I'd like to only add the files and folders that are relevant to me, like <em>.vimrc</em>, <em>.vim</em>, <em>.bashrc</em>, et... | 21,267,097 | 5 | 2 | null | 2014-01-21 19:07:58.29 UTC | 23 | 2021-10-08 23:28:40.48 UTC | 2014-01-21 19:12:19.397 UTC | null | 68,587 | null | 3,046,043 | null | 1 | 50 | git | 20,355 | <p><strong>.gitignore</strong></p>
<pre><code># Ignore everything
*
# But not these files...
!*.vimrc
!*.vim
!*.bashrc
!.gitignore
# etc...
</code></pre>
<p>My home directory is also on <a href="https://github.com/vanniktech/config-home" rel="nofollow noreferrer">GitHub</a>.</p> |
21,344,842 | if 'a' or 'b' in L, where L is a list (Python) | <p>I am having trouble with the following logic:</p>
<p>Lets say I have a list <code>L = ['a', 'b', 'c']</code></p>
<hr>
<p>Both items are in the list...</p>
<pre><code>if ('a' or 'b') in L:
print 'it\'s there!'
else:
print 'No sorry'
</code></pre>
<p>prints <code>It's there!</code></p>
<hr>
<p>Only the ... | 21,344,886 | 4 | 2 | null | 2014-01-25 00:16:56.45 UTC | 5 | 2022-08-15 09:09:27.167 UTC | null | null | null | null | 2,224,777 | null | 1 | 19 | python | 47,866 | <p>Let's break down the expression:</p>
<p><code>('e' or 'a')</code> will first check if <code>'e'</code> is True. If it is, the expression will return <code>'e'</code>. If not, it will return <code>'a'</code>.</p>
<p>Since all non-empty strings returns <code>True</code>, this expression will always return <code>'e'<... |
28,187,786 | Monit daemon - error connecting to the monit daemon | <p>I installed monit and tried to check the status using below command.</p>
<pre><code>monit status
</code></pre>
<p>But end up with below error.</p>
<pre><code>monit: error connecting to the monit daemon
</code></pre>
<p>How can I fix this?</p> | 28,187,787 | 2 | 1 | null | 2015-01-28 08:36:17.887 UTC | 9 | 2017-05-01 07:29:54.307 UTC | null | null | null | null | 1,263,783 | null | 1 | 46 | linux|ubuntu|debian|monitoring|monit | 19,301 | <p>edit vim <code>/etc/monit/monitrc</code>, starting from line 118 and uncomment below lines</p>
<pre><code> set httpd port 2812
use address localhost # only accept connection from localhost
allow localhost # allow localhost to connect to the server and
allow admin:monit
</code></pre>
<p><code>su... |
1,365,649 | How to handle string encoding in java? | <p>I was really discouraged by java's string encoding.
There are many auto conversions in it. and I can't found the regular.
Anyone have good idea?
for example:
In a jsp page, it has such link</p>
<pre><code>http://localhost:8080/helloworld/hello?world=凹ㄉ
</code></pre>
<p>And then we need to process it, so we do this... | 1,365,686 | 3 | 0 | null | 2009-09-02 03:01:28.84 UTC | 2 | 2020-05-25 08:24:53.187 UTC | 2010-09-27 14:16:35.007 UTC | null | 139,010 | null | 140,899 | null | 1 | 2 | java|string|character-encoding | 43,059 | <p>That is not how you convert between character sets. What you need to be worrying about is this part:</p>
<pre><code> request.getParameter("world").toString().getBytes("ISO-8859-1")
</code></pre>
<p>Once you have it as a string, it is stored internally as 16 bit unicode. Getting it as bytes and then telling java to... |
2,166,039 | Java: how to get a File from an escaped URL? | <p>I'm receiving an URL that locates a local file (the fact that I receive an URL is not in my control). The URL is escaped validly as defined in RFC2396. How can I transform this to a Java File object?</p>
<p>Funnily enough, the URL getFile() method returns a String, not a File.</p>
<p>I've created a directory cal... | 2,166,059 | 3 | 1 | null | 2010-01-29 23:39:36.52 UTC | 4 | 2015-04-03 16:41:55.37 UTC | 2010-01-29 23:49:58.82 UTC | null | 257,356 | null | 257,356 | null | 1 | 46 | java|file|url|escaping | 54,708 | <pre><code>URLDecoder.decode(url);//deprecated
URLDecoder.decode(url, "UTF-8"); //use this instead
</code></pre>
<p>See related question <a href="https://stackoverflow.com/questions/623861/how-do-you-unescape-urls-in-java">How do you unescape URLs in Java?</a></p> |
1,745,105 | Postgres dump of only parts of tables for a dev snapshot | <p>On production our database is a few hundred gigabytes in size. For development and testing, we need to create snapshots of this database that are functionally equivalent, but which are only 10 or 20 gigs in size. </p>
<p>The challenge is that the data for our business entities are scattered across many tables. We w... | 1,746,215 | 3 | 0 | null | 2009-11-16 21:54:33.76 UTC | 25 | 2016-09-18 20:17:59.013 UTC | null | null | null | null | 212,420 | null | 1 | 110 | postgresql | 44,065 | <p>On your larger tables you can use the COPY command to pull out subsets...</p>
<pre><code>COPY (SELECT * FROM mytable WHERE ...) TO '/tmp/myfile.tsv'
COPY mytable FROM 'myfile.tsv'
</code></pre>
<p><a href="http://www.postgresql.org/docs/8.4/interactive/sql-copy.html" rel="noreferrer">https://www.postgresql.org/do... |
8,929,738 | SQLAlchemy declarative: defining triggers and indexes (Postgres 9) | <p>Is there a way in the SQLAlchemy class of a table to define/create triggers and indexes for that table?</p>
<p>For instance if i had a basic table like ...</p>
<pre><code>class Customer(DeclarativeBase):
__tablename__ = 'customers'
customer_id = Column(Integer, primary_key=True,autoincrement=True)
cust... | 8,931,084 | 1 | 1 | null | 2012-01-19 16:35:37.153 UTC | 10 | 2012-08-22 04:45:44.38 UTC | 2012-08-22 04:45:44.38 UTC | null | 157,176 | null | 761,029 | null | 1 | 29 | postgresql|sqlalchemy|turbogears | 10,837 | <p><strong>Indicies</strong> are straight-forward to create. For single-column with <code>index=True</code> parameter like below:</p>
<pre><code>customer_code = Column(Unicode(15),unique=True,index=True)
</code></pre>
<p>But if you want more control over the name and options, use the explicit <a href="http://www.sqla... |
19,607,448 | Execute statement by shortcut in MySQLWorkbench | <p>How can I execute any statement in MySQLWorkbench using shortcut? Now I have to press button (yellow lightning). Of course I have read this in the documentation: <a href="https://dev.mysql.com/doc/workbench/en/wb-keys.html#wb-shortcuts-query-menu" rel="nofollow noreferrer">Table 14.6 - query menu</a> (Table 14.6 - q... | 19,608,015 | 7 | 1 | null | 2013-10-26 13:44:54.113 UTC | 11 | 2021-11-18 21:40:44.157 UTC | 2021-11-12 08:30:38.707 UTC | null | 10,158,227 | null | 2,213,654 | null | 1 | 56 | mysql|mysql-workbench | 58,783 | <p><code>Return</code> = <code>Enter</code> key. So <code>Ctrl + Enter</code> key should execute.</p> |
24,959 | Debugging asp.net with firefox and visual studio.net - very slow compared to IE | <p>Debugging asp.net websites/web projects in visual studio.net 2005 with Firefox is loads slower
than using IE.</p>
<p>I've read something somewhere that there is a way of fixing this but i can't for the life of me find it again.</p>
<p>Does anyone know what i'm on about and can point me in the right direction plea... | 24,982 | 4 | 0 | null | 2008-08-24 10:28:10.373 UTC | 13 | 2010-03-21 03:39:37.207 UTC | 2009-03-23 09:20:03.197 UTC | moocha | 14,444 | john | 2,041 | null | 1 | 18 | debugging|firefox|visual-studio-2005 | 10,046 | <p>bingo. found the <a href="http://dotnetslackers.com/ASP_NET/re-122146_Speeding_Up_FireFox_When_Using_the_ASP_NET_Development_Server_from_Localhost.aspx" rel="noreferrer">article</a> i read before. </p>
<p>i just changed my network.dns.ipv4OnlyDomains property in about:config to localhost. restarted firefox and now ... |
923,283 | What is the minimal setup required to deploy a .NET application with Oracle client 11? | <p>What is the minimal setup required to be able to deploy a .NET application that talks to an Oracle database?</p> | 923,413 | 4 | 1 | null | 2009-05-28 21:23:47.047 UTC | 31 | 2015-11-06 07:19:40.99 UTC | null | null | null | null | 549 | null | 1 | 37 | oracle|odp.net | 29,781 | <p>Josh-</p>
<p>Thank you very much for taking the time to answer. Your instructions helped a whole lot, and are very close to what I have found on my own.</p>
<p>Interestingly enough, I found it can be slimmed a little more.</p>
<p>For those in my situation who</p>
<ol>
<li>Do not want their users to have to insta... |
195,625 | What is the time complexity of popping elements from list in Python? | <p>I wonder what is the time complexity of pop method of list objects in Python (in CPython particulary). Also does the value of N for list.pop(N) affects the complexity? </p> | 195,647 | 4 | 0 | null | 2008-10-12 15:58:59.077 UTC | 17 | 2022-06-19 22:50:06.147 UTC | 2022-06-19 22:50:06.147 UTC | Haldun | 224,132 | Haldun | 21,000 | null | 1 | 69 | python|list|performance | 69,705 | <p><code>Pop()</code> for the last element ought to be O(1) since you only need to return the element referred to by the last element in the array and update the index of the last element. I would expect <code>pop()</code> for an arbitrary element to be O(N) and require on average N/2 operations since you would need t... |
22,261,048 | Using glyphicon as background image in CSS: rails 4 + bootstrap 3 | <p>I'm using bootstrap's collapse.js to expand and collapse some input groups in a rails app. I'm using JS to determine if the group is expanded or not and have created CSS classes to add a "+" or "-" to show whether it's open or closed:</p>
<p>Open:
<img src="https://i.stack.imgur.com/rJxVb.png" alt="enter image des... | 22,261,963 | 2 | 1 | null | 2014-03-07 21:30:58.763 UTC | 1 | 2017-03-28 07:27:17.823 UTC | 2014-03-07 23:53:35.67 UTC | null | 2,977,778 | null | 2,977,778 | null | 1 | 16 | html|css|ruby-on-rails|twitter-bootstrap|glyphicons | 49,630 | <p>Here, try this <strong><a href="http://www.bootply.com/119952" rel="noreferrer">Bootply</a></strong>. Would this suffice? </p>
<pre><code><div id="lol"></div>
</code></pre>
<hr>
<pre><code>#lol{
height:40px;
border:1px solid #555;
width:50%;
margin:30px;
}
#lol:before{
content:"\2b";
f... |
14,037,016 | In Java, should I use ArrayList<Long> or long[] ? | <p>I am writing a program which accepts 400 numbers of type <code>long</code> and will modify some of them depending on conditions at runtime and I want to know whether to use <code>ArrayList<Long></code> or <code>long[]</code>. </p>
<p>Which will be faster to use? I am thinking of using <code>long[]</code> beca... | 14,037,041 | 6 | 6 | null | 2012-12-26 06:54:07.76 UTC | 1 | 2017-10-03 08:42:43.14 UTC | 2012-12-26 07:24:26.757 UTC | null | 254,477 | null | 513,340 | null | 1 | 3 | java|arrays|performance|arraylist | 54,811 | <p>When the size is fixed, <code>long[]</code> is faster, but it allows a less maintainable API, because it does not implement the <code>List</code> interface.</p>
<p>Note a <code>long[]</code> is faster for 2 reasons:</p>
<ol>
<li>Uses primitive <code>long</code>s and not box object <code>Long</code>s (also enables ... |
14,141,307 | Change link href via jQuery | <blockquote>
<p><strong>Possible Duplicate:</strong><br>
<a href="https://stackoverflow.com/questions/179713/how-to-change-the-href-for-a-hyperlink-using-jquery">How to change the href for a hyperlink using jQuery</a> </p>
</blockquote>
<p>I'm using Drupal and system generate my title. </p>
<p>E.G.</p>
<pre><... | 14,141,341 | 3 | 1 | null | 2013-01-03 14:57:02.97 UTC | null | 2013-01-03 15:01:04.893 UTC | 2017-05-23 12:25:51.337 UTC | null | -1 | null | 1,485,921 | null | 1 | 5 | javascript|jquery | 52,821 | <pre><code>$("#quicktabs-tab-galeri-1").attr("href", new_href);
</code></pre>
<p>That should do the trick for you.</p> |
34,538,879 | Unicode in Github markdown | <p>I just made a failed attempt to put unicode in Github markdown (in a README.md file) in my project.</p>
<p>I tried this:</p>
<pre><code>(U+262E)
</code></pre>
<p>but it was not interpreted as unicode. Is there a way to put unicode characters in Github markdown?</p> | 36,616,878 | 7 | 4 | null | 2015-12-30 23:30:39.76 UTC | 10 | 2021-11-14 23:16:10.393 UTC | 2017-07-28 17:38:55.27 UTC | null | 1,223,975 | null | 1,223,975 | null | 1 | 60 | github|unicode|markdown|github-flavored-markdown | 45,599 | <p>I believe the correct answer is to use unicode characters of the following (decimal) form </p>
<pre><code>&#9658;
&#767;
&#2400;
</code></pre>
<p>the above become:</p>
<p>►
˿
ॠ</p>
<p>Try it for yourself on Github and see. You have to paste the raw character strings, not the unicode ... |
25,205,750 | Quickly square a double | <p>I am looking for the fastest way to square a double (<code>double d</code>). So far I came up with two approaches:</p>
<pre><code>1. d*d
2. Math.pow(d, 2)
</code></pre>
<p>To test the performance I set up three test cases, in each I generate random numbers using the same seed for the three cases and just calculate... | 25,205,921 | 3 | 3 | null | 2014-08-08 14:25:09.36 UTC | 2 | 2020-04-27 12:47:51.267 UTC | 2020-04-27 12:47:51.267 UTC | null | 183,704 | null | 253,387 | null | 1 | 25 | java|performance|math|multiplication | 50,659 | <p>The fastest way to square a number is to multiply it by itself.</p>
<blockquote>
<p>Why is <code>Math.pow</code> so slow?</p>
</blockquote>
<p>It's really not, but it is performing <a href="http://en.wikipedia.org/wiki/Exponentiation" rel="noreferrer">exponentiation</a> instead of simple multiplication.</p>
<bl... |
61,835,971 | ES7, ES8, ES9, ES10, ES11 Browser support | <p>Regarding compatibility between ECMAScript specification and actual implementation;</p>
<p>It is fairly easy to check out the data about <a href="https://caniuse.com/#search=ECMAScript%206" rel="noreferrer">browser support for ECMAScript2015 (ES6)</a>, but I found it pretty difficult to have an equivalently clear ta... | 61,836,170 | 2 | 1 | null | 2020-05-16 11:23:41.2 UTC | 7 | 2022-04-27 03:18:26.297 UTC | 2022-04-26 09:26:13.797 UTC | null | 1,614,677 | null | 4,628,597 | null | 1 | 49 | javascript|ecmascript-2016|ecmascript-2017 | 27,327 | <p>Browser vendors don't implement specific <em>versions</em>, but specific <em>features</em>. Almost every modern browser is still missing features from ES2017-ES2020. Hence there is not and won't be a table where you can see an ES version to browser version mapping.</p>
<p>But that is not a problem because you as a d... |
6,525,916 | Dynamically Display String text on Android Screen | <p>I have an array of classes that contain two strings for each class. I'm trying to display these two strings (they're sentences) on the screen when a button is clicked at two different locations (middle of the screen, and the other sentence right above that).</p>
<p>The problem is that I only know how to get text o... | 6,526,075 | 2 | 0 | null | 2011-06-29 19:10:47.85 UTC | 2 | 2012-03-26 04:55:20.763 UTC | 2011-06-29 19:12:55.087 UTC | null | 21,234 | null | 819,486 | null | 1 | 8 | android | 68,811 | <p>To add a view dynamically. Use the addView function.</p>
<pre><code>public MyActivity extends Activity {
private TextView myText = null;
@Override
public onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.id.mylayout);
LinearLayout lView = (LinearLayout... |
55,283,725 | unit test mocha Visual Studio Code describe is not defined | <p>If i run in the console the test runs fine</p>
<pre><code> mocha --require ts-node/register tests/**/*.spec.ts
</code></pre>
<p>Note: I installed mocha and mocha -g</p>
<p>I want to run unit test from Visual Studio Code</p>
<p>launcgh.js file</p>
<pre><code> "version": "0.2.0",
"co... | 55,883,516 | 3 | 2 | null | 2019-03-21 15:17:22.29 UTC | 5 | 2020-12-08 00:19:57.98 UTC | null | null | null | null | 5,708,097 | null | 1 | 37 | typescript|unit-testing|visual-studio-code|mocha.js | 11,410 | <p>Finally!!! After a long search and reading some tutorials and comments I found the solution: the problem was with the config.</p>
<p>Open the test config file and delete the following lines:</p>
<pre><code> "-u", <<<< delete this line
"tdd", <<<< del... |
7,157,129 | What is the mimeType attribute in <data> used for? | <p>I really can’t get the meaning of mimeType. I know that it exists so that the <code>getType</code> method in <code>ContentProvider</code> knows what to match with it. But I’m still not sure what it means or how it’s used.</p> | 7,159,778 | 3 | 1 | null | 2011-08-23 06:33:56.26 UTC | 38 | 2019-05-18 21:07:40.723 UTC | 2018-12-11 17:19:13.617 UTC | null | 7,379,765 | null | 674,199 | null | 1 | 48 | android|mime-types | 37,742 | <p>Any <code>ContentProvider</code> usually defines the type of data it handles (e.g. <a href="http://developer.android.com/resources/samples/NotePad/src/com/example/android/notepad/NotePadProvider.html" rel="noreferrer">NotePadProvider</a> handles a <code>Notes</code> data type defined in an inner class of <a href="h... |
7,838,910 | faces-redirect and the back button cause other links to work incorrectly | <p>I have a question surrounding faces navigation. </p>
<p>So I have a page that takes a request parameter to load a specific user. This page displays a list of commandLink that, when clicked, redirect to another page using implicit navigation. The user is loaded by calling a method in a "preRenderView".</p>
<p>Th... | 7,840,789 | 1 | 0 | null | 2011-10-20 16:09:58.887 UTC | 8 | 2013-04-11 12:58:11.44 UTC | 2013-04-11 12:58:11.44 UTC | null | 1,065,197 | null | 534,184 | null | 1 | 6 | jsf|redirect|jsf-2 | 3,212 | <p>Basically, you need to tell the browser to not cache the dynamically generated JSF pages while having view state saving method set to (default) <code>server</code>. The view state is tracked by a <code><input type="hidden" name="javax.faces.ViewState"></code> field in the form of the generated JSF page with th... |
2,277,770 | Setting a button's text to have some bold characters in WPF | <p>I'd like to know if it is possible to define as the text of a <code>Button</code> in WPF, something like:
a <strong>b</strong> c</p>
<p>I've tried setting
<a href="http://img651.imageshack.us/img651/1838/ctldhrzhy41gbrcch4dpjz4.png" rel="noreferrer">alt text http://img651.imageshack.us/img651/1838/ctldhrzhy41gbrcch... | 2,277,811 | 4 | 0 | null | 2010-02-17 01:40:16.153 UTC | 3 | 2019-12-15 16:52:06.507 UTC | 2011-09-23 19:03:48.317 UTC | null | 305,637 | null | 130,758 | null | 1 | 16 | c#|.net|wpf|button|styles | 50,406 | <p>Use a <code>TextBlock</code> to hold the formatted text:</p>
<pre><code><Button>
<TextBlock>Hey <Bold>you</Bold>!!!</TextBlock>
</Button>
</code></pre>
<p>Per your comment, if you want to be explicit about the fact that this sets the <code>Content</code> property, you can use ... |
1,474,135 | Django Admin: Ordering of ForeignKey and ManyToManyField relations referencing User | <p>I have an application that makes use of Django's <code>UserProfile</code> to extend the built-in Django <code>User</code> model. Looks a bit like:</p>
<pre><code>class UserProfile(models.Model):
user = models.ForeignKey(User, unique=True)
# Local Stuff
image_url_s = models.CharField(max_length=128, bla... | 1,474,175 | 4 | 0 | null | 2009-09-24 21:01:23.547 UTC | 10 | 2014-05-14 08:52:46.48 UTC | null | null | null | null | 178,711 | null | 1 | 23 | python|django|sorting|admin|user-profile | 22,269 | <p>One way would be to define a custom form to use for your Team model in the admin, and override the <code>manager</code> field to use a queryset with the correct ordering:</p>
<pre><code>from django import forms
class TeamForm(forms.ModelForm):
manager = forms.ModelChoiceField(queryset=User.objects.order_by('us... |
2,284,703 | Emacs: how to disable 'file changed on disk' checking? | <p>How to disable Emacs from checking the buffer file was changed outside the editor?</p> | 2,284,921 | 4 | 0 | null | 2010-02-17 21:57:05.927 UTC | 10 | 2016-11-26 03:52:40.157 UTC | null | null | null | null | 137,122 | null | 1 | 24 | emacs | 9,503 | <p>Emacs is really trying to help you here. Read the info page on <a href="http://www.gnu.org/software/emacs/manual/html_node/emacs/Interlocking.html" rel="noreferrer">Protection against Simultaneous Editing</a>.</p>
<p>But, if you still want to avoid that message/prompt, you can redefine the function that is doing t... |
1,763,071 | Negate characters in Regular Expression | <p>How would I write a regular expression that matches the following criteria?</p>
<ul>
<li>No numbers</li>
<li>No special characters</li>
<li>No spaces</li>
</ul>
<p>in a string</p> | 1,763,582 | 4 | 3 | null | 2009-11-19 12:48:49.847 UTC | 3 | 2017-06-28 21:52:01.99 UTC | 2017-06-28 21:52:01.99 UTC | null | 6,943,394 | null | 192,923 | null | 1 | 62 | regex|regex-negation | 107,113 | <p>The caret inside of a character class [^ ] is the negation operator common to most regular expression implementations (Perl, .NET, Ruby, Javascript, etc). So I'd do it like this:</p>
<pre><code>[^\W\s\d]
</code></pre>
<ul>
<li>^ - Matches anything NOT in the character class</li>
<li>\W - matches non-word characte... |
1,385,871 | how to remove key+value from hash in javascript | <p>Given</p>
<pre><code>var myHash = new Array();
myHash['key1'] = { Name: 'Object 1' };
myHash['key2'] = { Name: 'Object 2' };
myHash['key3'] = { Name: 'Object 3' };
</code></pre>
<p>How do I remove <code>key2</code>, and <code>object 2</code> from the hash, so that it ends up in a state as if I did:</p>
<pre><code... | 1,385,889 | 4 | 2 | null | 2009-09-06 15:04:10.457 UTC | 6 | 2018-05-30 18:05:40.963 UTC | 2018-05-30 18:05:40.963 UTC | null | 11,732,320 | null | 28,543 | null | 1 | 84 | javascript|arrays | 111,505 | <p>You're looking for <a href="https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Operators/Special_Operators/delete_Operator" rel="noreferrer"><code>delete</code></a>:</p>
<pre><code>delete myhash['key2']
</code></pre>
<p>See the <a href="https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide" rel="n... |
1,715,681 | Scala 2.8 breakOut | <p>In Scala <strong>2.8</strong>, there is an object in <code>scala.collection.package.scala</code>:</p>
<pre><code>def breakOut[From, T, To](implicit b : CanBuildFrom[Nothing, T, To]) =
new CanBuildFrom[From, T, To] {
def apply(from: From) = b.apply() ; def apply() = b.apply()
}
</code></pre>
<p>I have ... | 1,716,558 | 4 | 2 | null | 2009-11-11 14:53:23.257 UTC | 168 | 2017-04-30 14:26:24.553 UTC | 2015-05-08 21:50:41.59 UTC | null | 699,224 | null | 16,853 | null | 1 | 230 | scala|scala-2.8|scala-collections | 37,610 | <p>The answer is found on the definition of <code>map</code>:</p>
<pre><code>def map[B, That](f : (A) => B)(implicit bf : CanBuildFrom[Repr, B, That]) : That
</code></pre>
<p>Note that it has two parameters. The first is your function and the second is an implicit. If you do not provide that implicit, Scala will ... |
36,612,596 | Tuple to parameter pack | <p>This below code from user Faheem Mitha, is based on user Johannes Schaub - litb's answer in this <a href="https://stackoverflow.com/a/9288547/1655492">SO</a>. This code perfectly does what I seek, which is conversion of a <code>tuple</code> into parameter pack, but I don't understand this code well enough and theref... | 36,612,797 | 2 | 5 | null | 2016-04-14 02:06:04.927 UTC | 11 | 2019-02-10 19:12:14.353 UTC | 2017-05-23 12:02:31.27 UTC | null | -1 | null | 1,655,492 | null | 1 | 19 | c++|templates|c++11|variadic-templates | 16,366 | <p>Let's look at what happens here:</p>
<pre><code>template<int N, int ...S> struct gens : gens<N - 1, N - 1, S...> { };
template<int ...S> struct gens<0, S...>{ typedef seq<S...> type; };
</code></pre>
<p>The first one is a generic template, the second one is a specialization that appl... |
7,294,176 | How to create global functions in Objective-C | <p>I'm developing an iphone app and I need to have some functions to use globally in my classes.</p>
<p>But how can I do this?</p>
<p>I just tried to create <code>functions.h</code> likes this</p>
<pre><code>#include <Foundation/Foundation.h>
- (void)printTest;
</code></pre>
<p>and in the <code>functions.m</... | 7,294,359 | 5 | 0 | null | 2011-09-03 16:00:55.577 UTC | 13 | 2021-09-07 20:34:03.773 UTC | null | null | null | null | 719,127 | null | 1 | 35 | iphone|objective-c | 30,939 | <p>First note that Objective-C language is a superset of C language (meaning there is absolutely nothing wrong with mixing them).</p>
<p>There are two approaches.</p>
<h2>#1 Real global function:</h2>
<p>Declare a global C-style function, which can have ObjC logic (in definetion instead of just C-style logic).</p>
<p>H... |
7,240,916 | Android: Under what circumstances would a Dialog appearing cause onPause() to be called? | <p>A snippet from the Android <a href="http://developer.android.com/guide/topics/fundamentals/activities.html#Lifecycle" rel="noreferrer">Activities</a> document(scroll down to the "<strong>foreground lifetime</strong>" line) says :</p>
<blockquote>
<p>An activity can frequently transition in and out of the foregrou... | 7,384,782 | 7 | 0 | null | 2011-08-30 09:06:47.133 UTC | 35 | 2018-07-05 20:44:30.963 UTC | 2011-09-06 11:11:53.257 UTC | null | 570,930 | null | 570,930 | null | 1 | 81 | android|dialog|lifecycle|android-lifecycle|onpause | 29,559 | <p><code>onPause()</code> is called when your activity is no longer at the top of the activity stack. A Dialog by itself is not an Activity, so will not replace the current Activity at the top of the stack, so will not cause anything to pause.</p>
<p>A dialog (lower-case) does not need to be implemented by a Dialog c... |
13,928,689 | How to setup a maven project in Intellij IDEA 12 | <p>I have problem importing a maven project which was created by Netbeans into the IDEA 12. The dependency artifacts writen in the pom doesn't work. It told me that "cannot resolve symbol 'springframework'" on "import org.springframework.xxx;". When I runs it, it says that org.springframework.xxx doesn't exist.
Here is... | 13,930,041 | 4 | 5 | null | 2012-12-18 08:03:17.603 UTC | 5 | 2015-04-10 12:58:48.153 UTC | 2015-04-10 12:58:48.153 UTC | null | 617,450 | null | 1,122,665 | null | 1 | 8 | java|maven|intellij-idea | 42,203 | <p>If the project runs on the command line (<code>mvn clean install</code>) the chance is like 100% it will work in IntelliJ 12 too :-)</p>
<p>After File -> Project Import -> From external Maven Model you should see the modules.</p>
<p>What I would check in the IntelliJ settings is the location of the maven home dire... |
14,198,942 | Webapp file organization convention (development structure) | <p>For the webapps I'm developing, I usually use the following files organization, since I think it respects the convention:</p>
<pre class="lang-none prettyprint-override"><code>src
|-- main
|-- resources
| |-- *.properties
| |-- *.xml
| |-- spring
| |-- applicationContext.xml (main ap... | 14,200,520 | 2 | 0 | null | 2013-01-07 15:31:14.1 UTC | 12 | 2018-10-13 19:43:55.17 UTC | 2013-08-16 21:32:48.513 UTC | null | 814,702 | null | 1,225,328 | null | 1 | 17 | java|spring|jakarta-ee|web-applications|file-organization | 29,761 | <p>You can create the Java Web project is some popular IDE, like Eclipse, NetBeans, IntelliJ IDEA, to see the typical Java Web application structure.</p>
<p>And there is a difference between the <strong>development structure and packaging structure</strong>.<br>
While developing an app you can pretty much use whatever... |
14,190,045 | How do I convert datetime.timedelta to minutes, hours in Python? | <p>I get a start_date like this:</p>
<pre><code>from django.utils.timezone import utc
import datetime
start_date = datetime.datetime.utcnow().replace(tzinfo=utc)
end_date = datetime.datetime.utcnow().replace(tzinfo=utc)
duration = end_date - start_date
</code></pre>
<p>I get output like this:</p>
<pre><code>datetim... | 14,190,143 | 10 | 2 | null | 2013-01-07 04:48:07.177 UTC | 27 | 2021-06-14 20:14:07.247 UTC | 2018-10-29 23:17:30.293 UTC | null | 63,550 | null | 1,881,957 | null | 1 | 80 | python|django | 206,471 | <p>There's no built-in formatter for <code>timedelta</code> objects, but it's pretty easy to do it yourself:</p>
<pre><code>days, seconds = duration.days, duration.seconds
hours = days * 24 + seconds // 3600
minutes = (seconds % 3600) // 60
seconds = seconds % 60
</code></pre>
<p>Or, equivalently, if you're in Python... |
13,856,266 | Class broken error with Joda Time using Scala | <p>I'm adding the Joda Time repository to SBT with</p>
<pre><code>libraryDependencies ++= Seq(
"joda-time" % "joda-time" % "2.1"
)
</code></pre>
<p>Then I merrily use it like this:</p>
<pre><code> val ymd = org.joda.time.format.DateTimeFormat.forPattern("yyyyMMdd")
ymd.parseDateTime("20121212")... | 13,856,382 | 2 | 0 | null | 2012-12-13 09:00:43.637 UTC | 9 | 2016-12-29 10:41:49.11 UTC | null | null | null | null | 828,757 | null | 1 | 92 | scala|sbt|jodatime | 21,570 | <p>Add this dependency: </p>
<blockquote>
<p>"org.joda" % "joda-convert" % "1.8.1"</p>
</blockquote>
<p>It's an optional dependency of joda-time.
I had to add it in my own project for the scala compiler to accept working with the joda-time jar.</p>
<p>Your issue seems to be the same.</p>
<p>Version is as at time ... |
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