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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
804,961 | How do I use CSS with a ruby on rails application? | <p>How do I use CSS with RoR? When I link externally, I'm never able to see the files. I cp'd the .css file to every folder I could think of...views, controller, template, and nothing seems to work.</p>
<p>What do I need to do to enable external CSS files with a rails application? I'm new to rails, so forgive me if th... | 804,972 | 8 | 0 | null | 2009-04-30 00:57:16.35 UTC | 14 | 2019-11-26 09:59:29.423 UTC | 2015-11-13 20:37:20.817 UTC | null | 1,223,693 | null | 78,182 | null | 1 | 67 | ruby-on-rails|css|ruby | 115,942 | <p>Put the CSS files in public/stylesheets and then use:</p>
<pre><code><%= stylesheet_link_tag "filename" %>
</code></pre>
<p>to link to the stylesheet in your layouts or erb files in your views.</p>
<p>Similarly you put images in public/images and javascript files in public/javascripts. </p> |
4,545 | What was the <XMP> tag used for? | <p>Does anyone remember the <code>XMP</code> tag?</p>
<p>What was it used for and why was it deprecated?</p> | 4,549 | 8 | 1 | null | 2008-08-07 09:21:41.563 UTC | 13 | 2018-12-17 15:49:59.753 UTC | 2017-05-26 09:38:53.863 UTC | null | 1,402,846 | null | 383 | null | 1 | 79 | html|tags | 52,678 | <p>A quick Google search on W3C reveals that <code>XMP</code> was introduced for displaying <strong>preformatted text</strong> in HTML 3.2 and earlier. When W3C deprecated the <code>XMP</code> tag, it suggested using the <code>PRE</code> tag as a preferred alternative.</p>
<p>Update: <a href="http://www.w3.org/TR/REC-... |
54,867 | What is the difference between old style and new style classes in Python? | <p>What is the difference between old style and new style classes in Python? When should I use one or the other?</p> | 54,873 | 8 | 0 | null | 2008-09-10 18:01:27.163 UTC | 304 | 2020-02-02 11:31:19.547 UTC | 2018-10-29 14:02:48.583 UTC | J.F. Sebastian | 10,388,629 | Tim | 4,883 | null | 1 | 1,108 | python|class|oop|types|new-style-class | 261,220 | <p>From <em><a href="http://docs.python.org/2/reference/datamodel.html#new-style-and-classic-classes" rel="noreferrer">New-style and classic classes</a></em>:</p>
<blockquote>
<p><strong>Up to Python 2.1, old-style classes were the only flavour available to the user.</strong></p>
<p>The concept of (old-style) c... |
280,566 | Run once a day in C# | <p>Is there any clever method out there to make my executeEveryDayMethod() execute once a day, without having to involve the Windows TaskScheduler?</p> | 280,772 | 9 | 1 | null | 2008-11-11 10:44:54.397 UTC | 6 | 2020-11-19 12:42:20.087 UTC | 2019-12-10 15:08:43.13 UTC | Robert Gould | 1,033,581 | Anders R | 36,504 | null | 1 | 18 | c#|scheduling | 42,218 | <p>Take a look at <a href="http://quartznet.sourceforge.net/" rel="noreferrer">quartz.net</a>. It is a scheduling library for .net.</p>
<p>More specifically take a look <a href="http://quartznet.sourceforge.net/tutorial/lesson_4.html" rel="noreferrer">here</a>.</p> |
1,036,347 | How do I use boolean variables in Perl? | <p>I have tried:</p>
<pre><code>$var = false;
$var = FALSE;
$var = False;
</code></pre>
<p>None of these work. I get the error message</p>
<pre>Bareword "false" not allowed while "strict subs" is in use.</pre> | 1,036,353 | 9 | 1 | null | 2009-06-24 04:08:11.387 UTC | 32 | 2022-06-15 13:51:10.023 UTC | 2009-06-24 21:17:16.01 UTC | null | 48,771 | null | 48,771 | null | 1 | 236 | perl|boolean | 264,489 | <p>In Perl, the following evaluate to false in conditionals:</p>
<pre><code>0
'0'
undef
'' # Empty scalar
() # Empty list
('')
</code></pre>
<p>The rest are true. There are no barewords for <code>true</code> or <code>false</code>.</p> |
134,158 | How would you sort 1 million 32-bit integers in 2MB of RAM? | <p>Please, provide code examples in a language of your choice.</p>
<p><strong>Update</strong>:
No constraints set on external storage.</p>
<p>Example: Integers are received/sent via network. There is a sufficient space on local disk for intermediate results.</p> | 228,866 | 10 | 0 | null | 2008-09-25 15:53:47.07 UTC | 19 | 2013-01-16 05:43:37.217 UTC | 2008-09-25 19:04:58.39 UTC | J.F. Sebastian | 4,279 | J.F. Sebastian | 4,279 | null | 1 | 14 | algorithm|language-agnostic|google-moderator | 32,027 | <p><a href="http://neopythonic.blogspot.com/2008/10/sorting-million-32-bit-integers-in-2mb.html" rel="noreferrer">Sorting a million 32-bit integers in 2MB of RAM using Python by Guido van Rossum</a></p> |
627,916 | Check if URL scheme is supported in javascript | <p>Is there any way to check if a URL scheme is currently registered on the phone... with javascript?</p> | 627,942 | 10 | 1 | null | 2009-03-09 20:34:17.25 UTC | 48 | 2019-12-31 17:24:33.443 UTC | 2013-08-11 01:37:07.343 UTC | null | 1,371,070 | jackb | null | null | 1 | 65 | javascript|iphone|safari|url-scheme | 80,060 | <p>No, not from a webpage.</p> |
237,432 | python properties and inheritance | <p>I have a base class with a property which (the get method) I want to overwrite in the subclass. My first thought was something like:</p>
<pre><code>class Foo(object):
def _get_age(self):
return 11
age = property(_get_age)
class Bar(Foo):
def _get_age(self):
return 44
</code></pre>
<p... | 237,858 | 11 | 0 | null | 2008-10-26 02:49:09.75 UTC | 19 | 2021-05-16 16:29:46.597 UTC | 2008-10-26 03:16:07.667 UTC | Peter Hoffmann | 720 | Peter Hoffmann | 720 | null | 1 | 62 | python|inheritance|properties|polymorphism | 48,781 | <p>I simply prefer to repeat the <code>property()</code> as well as you will repeat the <code>@classmethod</code> decorator when overriding a class method. </p>
<p>While this seems very verbose, at least for Python standards, you may notice:</p>
<p>1) for read only properties, <code>property</code> can be used as a d... |
1,195,206 | Is there a Java equivalent or methodology for the typedef keyword in C++? | <p>Coming from a C and C++ background, I found judicious use of <strong><code>typedef</code></strong> to be incredibly helpful. Do you know of a way to achieve similar functionality in Java, whether that be a Java mechanism, pattern, or some other effective way you have used?</p> | 1,195,221 | 12 | 5 | null | 2009-07-28 16:23:22.423 UTC | 16 | 2020-05-08 15:10:06.9 UTC | 2012-11-09 02:40:54.897 UTC | null | 139,010 | null | 89,339 | null | 1 | 277 | java|c++|c|design-patterns|typedef | 132,945 | <p>Java has primitive types, objects and arrays and that's it. No typedefs.</p> |
1,100,311 | What is the ideal growth rate for a dynamically allocated array? | <p>C++ has std::vector and Java has ArrayList, and many other languages have their own form of dynamically allocated array. When a dynamic array runs out of space, it gets reallocated into a larger area and the old values are copied into the new array. A question central to the performance of such an array is how fast ... | 1,100,359 | 12 | 0 | null | 2009-07-08 20:15:48.523 UTC | 60 | 2021-11-22 13:56:33.057 UTC | null | null | null | null | 50,385 | null | 1 | 101 | arrays|math|vector|arraylist|dynamic-arrays | 25,348 | <p>It will entirely depend on the use case. Do you care more about the time wasted copying data around (and reallocating arrays) or the extra memory? How long is the array going to last? If it's not going to be around for long, using a bigger buffer may well be a good idea - the penalty is short-lived. If it's going to... |
907,680 | CSS Printing: Avoiding cut-in-half DIVs between pages? | <p>I'm writing a plug-in for a piece of software that takes a big collection of items and pops them into HTML in a WebView in Cocoa (which uses WebKit as its renderer, so basically you can assume this HTML file is being opened in Safari).</p>
<p>The DIVs it makes are of dynamic height, but they don't vary too much. Th... | 907,719 | 12 | 3 | null | 2009-05-25 18:40:43.287 UTC | 54 | 2022-07-03 20:24:35.543 UTC | 2009-05-25 18:45:12.437 UTC | null | 27,637 | null | 112,224 | null | 1 | 252 | css|cocoa|printing|page-break | 174,250 | <p>Using <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/break-inside" rel="noreferrer">break-inside</a> should work:</p>
<pre class="lang-css prettyprint-override"><code>@media print {
div {
break-inside: avoid;
}
}
</code></pre>
<p>It works on <a href="https://developer.mozilla.org/en-US/docs/Web/CS... |
137,006 | Redefine Class Methods or Class | <p>Is there any way to redefine a class or some of its methods without using typical inheritance? For example:</p>
<pre><code>class third_party_library {
function buggy_function() {
return 'bad result';
}
function other_functions(){
return 'blah';
}
}
</code></pre>
<p>What can I do to re... | 137,028 | 13 | 2 | null | 2008-09-26 00:00:45.06 UTC | 15 | 2020-04-26 19:44:19.103 UTC | 2020-06-20 09:12:55.06 UTC | SeanDowney | -1 | SeanDowney | 5,261 | null | 1 | 54 | php|class|methods|redefine | 77,528 | <p>It's called <a href="http://en.wikipedia.org/wiki/Monkey_patch" rel="noreferrer">monkey patching</a>. But, PHP doesn't have native support for it.</p>
<p>Though, as others have also pointed out, the <a href="http://docs.php.net/runkit" rel="noreferrer">runkit library</a> is available for adding support to the langu... |
25,765 | Java configuration framework | <p>I'm in the process of weeding out all hardcoded values in a Java library and was wondering what framework would be the best (in terms of zero- or close-to-zero configuration) to handle run-time configuration? I would prefer XML-based configuration files, but it's not essential. </p>
<p>Please do only reply if you h... | 25,768 | 14 | 1 | 2009-06-29 06:54:39.35 UTC | 2008-08-25 08:17:54.297 UTC | 28 | 2015-05-06 18:00:22.02 UTC | 2010-12-21 10:26:03.277 UTC | Keith | 63,550 | Steen | 1,448,983 | null | 1 | 76 | java|xml|configuration|frameworks|configurationmanager | 30,542 | <p>If your hardcoded values are just simple key-value pairs, you should look at <a href="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Properties.html" rel="noreferrer">java.util.Properties</a>. It's a lot simpler than xml, easier to use, and mind-numbingly trivial to implement.</p>
<p>If you are working with Jav... |
476,163 | NAnt or MSBuild, which one to choose and when? | <p>I am aware there are other <a href="http://en.wikipedia.org/wiki/NAnt" rel="noreferrer">NAnt</a> and <a href="http://en.wikipedia.org/wiki/MSBuild" rel="noreferrer">MSBuild</a> related questions on Stack Overflow, but I could not find a direct comparison between the two and so here is the question.</p>
<p>When... | 483,505 | 14 | 0 | null | 2009-01-24 15:39:24.337 UTC | 91 | 2017-10-18 16:39:52.917 UTC | 2013-08-30 08:38:09.17 UTC | Fabian Steeg | 63,550 | Yordan Pavlov | 54,968 | null | 1 | 162 | .net|msbuild|automation|nant | 32,088 | <p>I've done a similar investigation this week. Here's what I've been able to determine:</p>
<p><strong>NAnt:</strong></p>
<ul>
<li>Cross-platform (supports Linux/Mono). It may be handy for installing a web site to multiple targets (that is, Linux Apache and Windows IIS), for example.</li>
<li>95% similar in syntax ... |
383,692 | What is JSON and what is it used for? | <p>I've looked on Wikipedia and Googled it and read the official documentation, but I still haven't got to the point where I really understand what JSON is, and why I'd use it.</p>
<p>I have been building applications using PHP, MySQL and JavaScript / HTML for a while, and if JSON can do something to make my life easie... | 383,699 | 16 | 4 | null | 2008-12-20 20:19:11.093 UTC | 361 | 2021-06-18 20:36:48.107 UTC | 2021-06-18 20:36:48.107 UTC | Dreas Grech | 2,756,409 | Ben | 11,522 | null | 1 | 562 | json | 579,618 | <p><strong>JSON (JavaScript Object Notation) is a lightweight format that is used for data interchanging.</strong> It is based on a subset of JavaScript language (the way objects are built in JavaScript). As <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON" rel="noreferrer... |
706,382 | Multiline strings in VB.NET | <p>Is there a way to have multiline strings in VB.NET like Python</p>
<pre><code>a = """
multi
line
string
"""
</code></pre>
<p>or PHP?</p>
<pre><code>$a = <<<END
multi
line
string
END;
</code></pre>
<p>Of course something that is not</p>
<pre><code>"multi" & _
"line
</code></pre> | 1,674,434 | 21 | 3 | null | 2009-04-01 16:36:48.567 UTC | 25 | 2019-08-02 15:34:00.087 UTC | 2019-08-02 15:34:00.087 UTC | null | 3,170,982 | pistacchio | 42,636 | null | 1 | 154 | string|vb.net | 156,767 | <p>You can use <strong><a href="https://msdn.microsoft.com/en-us/library/bb384629.aspx" rel="noreferrer">XML Literals</a></strong> to achieve a similar effect:</p>
<pre><code>Imports System.XML
Imports System.XML.Linq
Imports System.Core
Dim s As String = <a>Hello
World</a>.Value
</code></pre>
<p>Remember ... |
1,085,162 | Commit only part of a file in Git | <p>When I make changes to a file in Git, how can I commit only some of the changes?</p>
<p>For example, how could I commit only 15 lines out of 30 lines that have been changed in a file?</p> | 1,085,191 | 28 | 2 | null | 2009-07-06 02:25:02.39 UTC | 1,134 | 2022-09-06 02:47:21.023 UTC | 2017-03-07 18:03:41.677 UTC | null | -1 | null | 76,509 | null | 1 | 3,336 | git|git-commit | 540,073 | <p>You can use:</p>
<pre class="lang-bash prettyprint-override"><code>git add --patch <filename>
</code></pre>
<p>or for short:</p>
<pre class="lang-bash prettyprint-override"><code>git add -p <filename>
</code></pre>
<p>Git will break down your file into what it thinks are sensible "hunks" (porti... |
1,175,208 | Elegant Python function to convert CamelCase to snake_case? | <p>Example:</p>
<pre><code>>>> convert('CamelCase')
'camel_case'
</code></pre> | 1,176,023 | 30 | 4 | 2009-07-24 00:22:02.287 UTC | 2009-07-24 00:22:02.287 UTC | 158 | 2022-03-09 19:33:48.003 UTC | 2016-02-23 13:22:54.103 UTC | null | 1,079,110 | null | 55,246 | null | 1 | 332 | python|camelcasing | 289,924 | <h2>Camel case to snake case</h2>
<pre class="lang-py prettyprint-override"><code>import re
name = 'CamelCaseName'
name = re.sub(r'(?<!^)(?=[A-Z])', '_', name).lower()
print(name) # camel_case_name
</code></pre>
<p>If you do this many times and the above is slow, compile the regex beforehand:</p>
<pre><code>patter... |
596,351 | How can I know which radio button is selected via jQuery? | <p>I have two radio buttons and want to post the value of the selected one.
How can I get the value with jQuery?</p>
<p>I can get all of them like this:</p>
<pre><code>$("form :radio")
</code></pre>
<p>How do I know which one is selected?</p> | 596,369 | 40 | 0 | null | 2009-02-27 19:53:27.18 UTC | 394 | 2022-09-13 05:12:25.84 UTC | 2020-01-10 15:06:37.937 UTC | Juan Manuel | 1,782 | Juan Manuel | 1,782 | null | 1 | 2,987 | javascript|jquery|html|jquery-selectors|radio-button | 2,438,741 | <p>To get the value of the <strong>selected</strong> <code>radioName</code> item of a form with id <code>myForm</code>:</p>
<pre><code>$('input[name=radioName]:checked', '#myForm').val()
</code></pre>
<p>Here's an example:</p>
<p><div class="snippet" data-lang="js" data-hide="false" data-console="false" data-babel="fal... |
6,315,323 | How can I sort strings in NSMutableArray into alphabetical order? | <p>I have a list of strings in an <code>NSMutableArray</code>, and I want to sort them into alphabetical order before displaying them in my table view.</p>
<p>How can I do that?</p> | 6,315,442 | 4 | 0 | null | 2011-06-11 10:15:26.16 UTC | 9 | 2016-02-22 06:15:07.97 UTC | 2013-10-11 23:41:49.773 UTC | null | 1,709,587 | null | 461,396 | null | 1 | 42 | objective-c|ios|cocoa-touch|sorting|nsmutablearray | 37,623 | <p>There is the following Apple's working example, using <a href="https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSArray_Class/NSArray.html#//apple_ref/doc/uid/20000137-BABBHAGJ" rel="noreferrer"><code>sortedArrayUsingSelector:</code></a> and <a href="https://developer.apple.co... |
6,805,963 | How to pass parameters with `include`? | <p>I have a PHP script called customers.php that is passed a parameter via the URL, e.g.:</p>
<p><a href="http://www.mysite,com/customers.php?employeeId=1" rel="noreferrer">http://www.mysite,com/customers.php?employeeId=1</a></p>
<p>Inside my customers.php script, I pick up the parameter thus:</p>
<pre><code>$employ... | 6,805,978 | 6 | 5 | null | 2011-07-24 09:13:56.1 UTC | 3 | 2021-09-27 12:53:29.83 UTC | 2011-07-24 09:23:56.873 UTC | null | 9,535 | null | 619,852 | null | 1 | 8 | php | 40,306 | <p>You can't add a query string (Something like ?x=yyy&vv=www) onto an include like that. Fortunately your includes have access to all the variables before them, so if <code>$_GET['employeeId']</code> is defined before you call:</p>
<pre><code>include 'customers.php';
</code></pre>
<p>Then customers.php will also... |
15,980,963 | Opinion on ASP.NET MVC Onion-based architecture | <p>What is your opinion on the following 'generic' code-first Onion-inspired ASP.NET MVC architecture:
<img src="https://i.stack.imgur.com/Q1Ngh.png" alt="screenshot of the solution explorer"></p>
<p>The layers, explained:</p>
<p><strong>Core</strong> - contain the Domain model. e.g. that's the business objects and t... | 16,019,657 | 4 | 6 | null | 2013-04-12 21:15:17.09 UTC | 20 | 2020-11-05 11:55:51.18 UTC | null | null | null | null | 253,266 | null | 1 | 20 | entity-framework|asp.net-mvc-4|onion-architecture | 8,599 | <p>Wow, there’s a lot to say here! ;-)</p>
<p>First of all, let’s talk about the overall architecture. </p>
<p>What I can see here is that it’s not really an Onion architecture. You forgot the outermost layer, the “Dependency Resolution” layer. In an Onion architecture, it’s up to this layer to wires up Core interfac... |
15,759,195 | Reduce size of Bitmap to some specified pixel in Android | <p>I would like to reduce My Bitmap image size to maximum of 640px. For example I have Bitmap image of size 1200 x 1200 px .. How can I reduce it to 640px.</p> | 15,759,464 | 4 | 0 | null | 2013-04-02 08:14:55.667 UTC | 7 | 2018-04-20 08:56:52.373 UTC | null | null | null | null | 232,988 | null | 1 | 33 | android|bitmap|compression | 43,152 | <p>If you pass bitmap <code>width</code> and <code>height</code> then use:</p>
<pre><code>public Bitmap getResizedBitmap(Bitmap image, int bitmapWidth, int bitmapHeight) {
return Bitmap.createScaledBitmap(image, bitmapWidth, bitmapHeight, true);
}
</code></pre>
<p>If you want to keep the bitmap ratio the same, bu... |
15,604,140 | Replace multiple strings with multiple other strings | <p>I'm trying to replace multiple words in a string with multiple other words. The string is "I have a cat, a dog, and a goat."</p>
<p>However, this does not produce "I have a dog, a goat, and a cat", but instead it produces "I have a cat, a cat, and a cat". Is it possible to replace multiple strings with multiple oth... | 67,374,697 | 27 | 6 | null | 2013-03-24 21:19:55.123 UTC | 144 | 2022-05-23 08:42:37.097 UTC | 2018-09-17 06:42:44.84 UTC | null | 4,652,706 | null | 975,097 | null | 1 | 293 | javascript|node.js|regex|string|replace | 394,091 | <p>As an answer to:</p>
<blockquote>
<p>looking for an up-to-date answer</p>
</blockquote>
<p>If you are using "words" as in your current example, you might extend the answer of <a href="https://stackoverflow.com/a/15604206/5424988">Ben McCormick</a> using a non capture group and add word boundaries <code>\b<... |
15,942,880 | mocking a method that return generics with wildcard using mockito | <p>I'm using mockito 1.9.5.
I have the following code:</p>
<pre><code>public class ClassA {
public List<? extends MyInterface> getMyInterfaces() {
return null;
}
public static void testMock() {
List<MyInterface> interfaces = new ArrayList<>();
ClassA classAMock = mock(ClassA.class);
... | 15,944,985 | 2 | 3 | null | 2013-04-11 07:21:08.337 UTC | 10 | 2018-10-02 13:27:49.7 UTC | null | null | null | null | 1,504,992 | null | 1 | 50 | java|generics|mockito | 27,206 | <p><strong>EDIT</strong> : Starting from Mockito 1.10.x, generics types that are embedded in the class are now used by Mockito for deep stubs. ie. </p>
<pre><code>public interface A<T extends Observer & Comparable<? super T>> {
List<? extends B> bList();
T observer();
}
B b = deep_stubbed.b... |
50,391,868 | python 3.5 in statsmodels ImportError: cannot import name '_representation' | <p>I cannot manage to import statsmodels.api correctly when i do that I have this error:</p>
<blockquote>
<p>File "/home/mlv/.local/lib/python3.5/site-packages/statsmodels/tsa/statespace/tools.py", line 59, in set_mode
from . import (_representation, _kalman_filter, _kalman_smoother,
ImportError: cannot impo... | 50,403,307 | 3 | 5 | null | 2018-05-17 12:47:07.493 UTC | 2 | 2021-06-16 06:49:58.603 UTC | 2018-05-17 12:47:34.423 UTC | null | 3,337,070 | null | 9,696,340 | null | 1 | 15 | python|python-3.x|python-3.5|importerror|statsmodels | 40,265 | <p>Please see <a href="https://github.com/statsmodels/statsmodels/issues/4654" rel="noreferrer">the github report</a> for more detail.</p>
<p>It turns out that statsmodels is dependent upon several packages being installed before it so that it can key on them to compile its own modules. I don't completely understand t... |
51,032,328 | Angular component default style css display block | <p>I am sick of all my angular elements being 0x0 pixels, because they have names like app-card, app-accordion, which the browser does not recognise as HTML5 compliant elements and as thus, will not give any default styles to.</p>
<p>This is means that inspecting it in Chrome, I fail to see the container dimensions an... | 60,098,592 | 1 | 2 | null | 2018-06-25 21:57:52.663 UTC | 1 | 2020-03-27 20:27:00.547 UTC | 2019-03-24 19:00:19.373 UTC | null | 1,702,592 | null | 1,702,592 | null | 1 | 28 | angular|angular6|angular5|angular2-template|angular7 | 10,657 | <p><a href="https://github.com/angular/angular-cli/pull/16299" rel="noreferrer">My pull-request has been merged</a>.</p>
<p>With the upcoming release of Angular CLI <strong>v9.1.0</strong> a new option is going to be available:<br></p>
<pre><code>--displayBlock=true|false
</code></pre>
<p>Docs: <a href="https://next.an... |
10,552,016 | How to prevent the cron job execution, if it is already running | <p>I have one php script, and I am executing this script via cron every 10 minutes on CentOS.</p>
<p>The problem is that if the cron job will take more than 10 minutes, then another instance of the same cron job will start.</p>
<p>I tried one trick, that is:</p>
<ol>
<li>Created one lock file with php code (same lik... | 10,552,054 | 9 | 3 | null | 2012-05-11 13:09:06.947 UTC | 19 | 2017-10-22 20:21:00.66 UTC | 2014-08-08 22:08:37.127 UTC | null | 12,892 | null | 1,358,434 | null | 1 | 33 | php|cron|centos | 47,732 | <p>Advisory locking is made for exactly this purpose.</p>
<p>You can accomplish advisory locking with <a href="http://php.net/flock" rel="noreferrer"><code>flock()</code></a>. Simply apply the function to a previously opened lock file to determine if another script has a lock on it.</p>
<pre><code>$f = fopen('lock', ... |
35,520,160 | python logging performance comparison and options | <p>I am researching high performance logging in Python and so far have been disappointed by the performance of the python standard logging module - but there seem to be no alternatives. Below is a piece of code to performance test 4 different ways of logging:</p>
<pre><code>import logging
import timeit
import time
imp... | 35,522,577 | 3 | 5 | null | 2016-02-20 06:53:56.517 UTC | 9 | 2021-10-26 16:23:05.677 UTC | null | null | null | null | 559,095 | null | 1 | 24 | python|multithreading|performance|logging|python-multithreading | 17,556 | <p>The stdlib <code>logging</code> package provides a lot of flexibility and functionality for developers / devops / support staff, and that flexibility comes at some cost, obviously. If the need for performance trumps the need for flexibility, you need to go with something else. Did you take the steps to optimise desc... |
33,415,388 | What's the difference between hex code (\x) and unicode (\u) chars? | <p>From <code>?Quotes</code>:</p>
<blockquote>
<pre><code>\xnn character with given hex code (1 or 2 hex digits)
\unnnn Unicode character with given code (1--4 hex digits)
</code></pre>
</blockquote>
<p>In the case where the Unicode character has only one or two digits, I would expect these characters to be the s... | 33,417,168 | 1 | 6 | null | 2015-10-29 13:19:45.423 UTC | 11 | 2018-02-11 09:02:09.1 UTC | 2018-02-11 09:02:09.1 UTC | null | 1,030,110 | null | 134,830 | null | 1 | 31 | r|unicode|hex | 23,015 | <p>The escape sequence <code>\xNN</code> inserts the raw byte <code>NN</code> into a string, whereas <code>\uNN</code> inserts the UTF-8 bytes for the Unicode code point <code>NN</code> into a UTF-8 string:</p>
<pre><code>> charToRaw('\xA3')
[1] a3
> charToRaw('\uA3')
[1] c2 a3
</code></pre>
<p>These two types ... |
13,467,034 | Add elements from one list to another C# | <p>What is the simplest way to add elements of one list to another?</p>
<p>For example, I have two lists:</p>
<p>List A which contains x items
List B which contains y items.</p>
<p>I want to add elements of B to A so that A now contains X+Y items. I know this can done using a loop but is there a built in method for ... | 13,467,046 | 2 | 0 | null | 2012-11-20 05:21:34.18 UTC | 2 | 2012-11-20 05:35:04.84 UTC | null | null | null | null | 1,081,402 | null | 1 | 22 | c# | 63,987 | <p>Your question describes the <a href="http://msdn.microsoft.com/en-us/library/z883w3dc.aspx">List.AddRange</a> method, which copies all the elements of its argument into the list object on which it is called.</p>
<p>As an example, the snippet</p>
<pre><code>List<int> listA = Enumerable.Range(0, 10).ToList();
... |
13,389,398 | Finding out how many times an array element appears | <p>I am new to JavaScript, I have been learning and practicing for about 3 months and hope I can get some help on this topic. I'm making a poker game and what I'm trying to do is determine whether i have a pair, two pairs, three of a kind, four of a kind or a full house.</p>
<p>For instance, in <code>[1, 2, 3, 4, 4, 4... | 13,389,463 | 6 | 3 | null | 2012-11-14 23:49:02.027 UTC | 6 | 2017-01-30 17:33:08.473 UTC | 2012-11-18 05:45:06.123 UTC | null | 23,897 | null | 1,825,277 | null | 1 | 22 | javascript|arrays | 65,019 | <ul>
<li>Keep a variable for the total count</li>
<li>Loop through the array and check if current value is the same as the one you're looking for, if it is, increment the total count by one</li>
<li>After the loop, total count contains the number of times the number you were looking for is in the array</li>
</ul>
<p>S... |
51,979,553 | Is it recommended to run systemd inside docker container? | <p>I am planning to use 'systemd' inside the container. Based on the articles I have read, it is preferable to limit only one process per container. </p>
<p>But if I configure 'systemd' inside the container, I will end up running many processes. </p>
<p>It would be great to understand the pros and cons of using syste... | 51,985,145 | 3 | 4 | null | 2018-08-23 06:28:54.633 UTC | 8 | 2019-02-26 07:48:19.233 UTC | 2018-08-23 08:08:20.573 UTC | null | 8,590,936 | null | 10,263,095 | null | 1 | 16 | docker|systemd | 19,425 | <p>I'd advise you to avoid systemd in a container if at all possible.</p>
<p><a href="https://www.freedesktop.org/wiki/Software/systemd/" rel="noreferrer">Systemd</a> mounts filesystems, controls several kernel parameters, has its own internal system for capturing process output, configures system swap space, configur... |
20,637,435 | Xcode: What is a target and scheme in plain language? | <p>Yeah the title says it :-) What do they mean in plain English language? I really don't understand the explanation on Apple's website and I need to rename my target and I'm afraid that nothing works after that..</p> | 20,637,892 | 6 | 2 | null | 2013-12-17 14:59:23.653 UTC | 108 | 2021-06-28 15:13:20.23 UTC | 2021-03-04 19:57:24.643 UTC | null | 5,175,709 | null | 1,833,434 | null | 1 | 268 | ios|xcode|xcode-scheme|xcode-target | 75,252 | <p>I've added in Workspace and Project too!</p>
<ul>
<li><strong>Workspace</strong> - Contains one or more <em>projects</em>. These projects usually relate to one another</li>
<li><strong>Project</strong> - Contains code and resources, etc. (You'll be used to these!)</li>
<li><strong>Target</strong> - Each project h... |
29,413,942 | C# anonymous object with properties from dictionary | <p>I'm trying to convert an dictionary to an anonymous type with one property for every Key.</p>
<p>I tried google it but all I could find was how to convert a anonymous object to a dictionary. </p>
<p>My dictionary looks something like this:</p>
<pre><code>var dict = new Dictionary<string, string>
{
{"Id"... | 29,414,014 | 6 | 4 | null | 2015-04-02 13:15:35.077 UTC | 7 | 2022-02-18 07:56:20.717 UTC | 2016-09-15 19:43:14.287 UTC | null | 5,120,235 | null | 3,082,887 | null | 1 | 42 | c#|object|dictionary | 52,828 | <p>You can't, basically. Anonymous types are created by the compiler, so they exist in your assembly with all the property names baked into them. (The property <em>types</em> aren't a problem in this case - as an implementation detail, the compiler creates a generic type and then creates an instance of that using appro... |
16,089,304 | JavaFX ImageView without any smoothing | <p>Is it possible to render a scaled image in an ImageView in JavaFX 2.2 without any smoothing applied? I'm rendering a 50x50 image into a 200x200 ImageView, with setSmooth(false), so each pixel in the source image should map to a 4x4 square on the screen.</p>
<p>However, the resulting render still smooths the source ... | 16,092,631 | 4 | 3 | null | 2013-04-18 17:17:06.98 UTC | 8 | 2021-04-08 18:23:41.09 UTC | 2016-11-03 09:03:23.033 UTC | null | 2,991,525 | null | 710,342 | null | 1 | 20 | javafx|javafx-2 | 14,387 | <p>In JavaFX 2.2 <code>ImageView</code> is always going to do some smoothing regardless of the <a href="http://docs.oracle.com/javafx/2/api/javafx/scene/image/ImageView.html#smoothProperty" rel="noreferrer">smooth</a> hint you provide to the <code>ImageView</code>. </p>
<p>(Based on testing using Java 7u15 and Window... |
16,331,887 | Get product id and product type in magento? | <p>I am creating magento store. I am beginner in magento. I want to get product id and product input type in my phtml file is this possible? please guide me..</p>
<p>I am trying to this way to get product type. but its not working for me</p>
<pre><code>$product=Mage::getModel('catalog/product')->load($product_id)... | 16,332,019 | 8 | 0 | null | 2013-05-02 06:40:25.273 UTC | 8 | 2017-07-12 16:10:46.797 UTC | null | user2564627 | 2,585,850 | user2564627 | 2,585,850 | null | 1 | 22 | php|magento|magento-1.7 | 127,160 | <p>Try below code to get currently loaded product id:</p>
<pre><code>$product_id = $this->getProduct()->getId();
</code></pre>
<p>When you don’t have access to $this, you can use Magento registry:</p>
<pre><code>$product_id = Mage::registry('current_product')->getId();
</code></pre>
<p>Also for product typ... |
29,104,643 | HttpClientError: The target server failed to respond | <p>I am trying to hit a server using HTTP client using <code>PoolingClientConnectionManager</code> setting max connections for individual hosts</p>
<pre class="lang-java prettyprint-override"><code>//Code that initializes my connection manager and HTTP client
HttpParams httpParam = httpclient.getParams();
HttpConnecti... | 29,642,453 | 2 | 5 | null | 2015-03-17 16:32:37.687 UTC | 7 | 2021-02-26 21:58:46.79 UTC | 2021-02-26 21:58:46.79 UTC | null | 185,123 | null | 3,481,360 | null | 1 | 21 | java|apache|httpclient|connection-pooling | 71,217 | <p>Probably, it is a bug in the HttpClient.</p>
<p>If you are using the HttpClient 4.4, please try to upgrade to 4.4.1.</p>
<p>If you want for more information, please look at <a href="https://issues.apache.org/jira/browse/HTTPCLIENT-1610">this link</a>.</p>
<p>If you can't upgrade, the following links might be help... |
17,186,866 | How to style HTML select/option tag? | <p>I would like to create a dropdown menu with html select thus I would like to style it as well. I would like to set a padding to the option tags so they wouldn't be so overcrowded, but I can't do so. (it doesn't work)
any idea?</p>
<pre><code>#categories
{
padding: 10px 10px 10px 10px;
background-color: #826B78;
fon... | 17,188,284 | 5 | 7 | null | 2013-06-19 08:51:05.913 UTC | 1 | 2017-05-15 21:01:19.323 UTC | null | null | null | null | 1,509,744 | null | 1 | 3 | html|css|drop-down-menu|menu|styles | 41,593 | <p>It is difficult to style select menu with css. The Best way of doing it is with jquery u can style and have a better control over the code with jquery. Just use a custom jquery like <a href="http://gregfranko.com/jquery.selectBoxIt.js/" rel="nofollow noreferrer">http://gregfranko.com/jquery.selectBoxIt.js/</a></p>
... |
17,623,445 | Set printing area In Excel 2013 using macro | <p>In Excel 2013, having sheet named <em>"Tags"</em>, I am trying to <strong>set a printing area</strong> from <code>A2</code> till end of page, ending with column <code>L</code>.</p>
<pre><code>Worksheets("Tags").PageSetup.PrintArea = Worksheets("Tags").Range( _
Cells(2, 1), Cells(Worksheets("Tags").Range("A65536")... | 17,623,610 | 2 | 0 | null | 2013-07-12 20:23:51 UTC | 3 | 2015-02-25 21:58:23.207 UTC | 2018-07-09 18:41:45.953 UTC | null | -1 | null | 1,215,106 | null | 1 | 3 | excel|vba | 71,131 | <p>It's easier to see what is happening if you declare a few variables and decompose your statement.</p>
<p>Try this:</p>
<pre><code>Sub SetPrintArea()
Dim ws As Worksheet
Dim lastRow As Long
Set ws = ThisWorkbook.Sheets("Tags")
' find the last row with formatting, to be included in print range
lastRow = ... |
17,574,916 | How to convert array of byte to String in Java? | <p>How can I convert a array of <code>bytes</code> to <code>String</code> without conversion?.</p>
<p>I tried:</p>
<pre><code> String doc=new String( bytes);
</code></pre>
<p>But the doc file is not the same than the bytes (the bytes are <strong>binary information</strong>). For example:</p>
<pre><code> String do... | 17,575,021 | 3 | 4 | null | 2013-07-10 15:34:58.237 UTC | 5 | 2017-07-29 03:47:11.95 UTC | 2017-07-29 03:47:11.95 UTC | null | 4,972,721 | null | 202,705 | null | 1 | 18 | java|arrays|string | 93,016 | <p>You need to specify the encoding you want e.g. for UTF-8</p>
<pre><code>String doc = ....
byte[] bytes = doc.getBytes("UTF-8");
String doc2 = new String(bytes, "UTF-8");
</code></pre>
<p><code>doc</code> and <code>doc2</code> will be the same.</p>
<p>To decode a <code>byte[]</code> you need to know what encoding ... |
24,623,559 | NSStatusItem change image for dark tint | <p>With OSX 10.10 beta 3, Apple released their dark tint option. Unfortunately, it also means that pretty much all status bar icons (with the exception of Apple's and Path Finder's that I've seen), including mine, remain dark on a dark background. How can I provide an alternate image for when dark tint is applied?</p>
... | 24,644,754 | 6 | 7 | null | 2014-07-08 04:09:51.7 UTC | 21 | 2018-10-22 03:59:38.243 UTC | 2017-09-13 17:13:49.75 UTC | null | 1,000,551 | null | 1,221,798 | null | 1 | 26 | objective-c|macos|osx-yosemite|nsstatusitem|nsstatusbar | 11,830 | <p>TL;DR: You don't have to do anything special in Dark Theme. Give NSStatusItem (or NSStatusBarButton) a template image and it will style it correctly in any menubar context.</p>
<hr>
<p>The reason why some apps' status items (such as PathFinder's) already work in Dark Theme is because they're not setting their own ... |
22,275,079 | pySerial write() won't take my string | <p>Using Python 3.3 and pySerial for serial communications.</p>
<p>I'm trying to write a command to my COM PORT but the write method won't take my string. (Most of the code is from here <a href="https://stackoverflow.com/questions/676172/full-examples-of-using-pyserial-package">Full examples of using pySerial package<... | 22,315,432 | 3 | 3 | null | 2014-03-08 21:05:29.23 UTC | 2 | 2020-11-23 13:09:21.35 UTC | 2017-05-23 12:32:26.74 UTC | null | -1 | null | 2,877,001 | null | 1 | 28 | python|pyserial | 154,963 | <p>It turns out that the string needed to be turned into a bytearray and to do this I editted the code to </p>
<pre><code>ser.write("%01#RDD0010000107**\r".encode())
</code></pre>
<p>This solved the problem</p> |
26,794,198 | Spring MVC @Path variable with { } braces | <p>Am developing an application using spring boot. In REST controller i prefer to use path variable(<code>@PathVariabale</code> annotation). My code fetching the path variable but it contatins <strong>{ }</strong> braces as it is in the url. Please any one suggest me to solve this issue</p>
<pre><code>@RequestMapping(... | 26,794,709 | 1 | 2 | null | 2014-11-07 04:42:59.573 UTC | 2 | 2016-09-15 08:26:06.35 UTC | 2016-09-15 08:26:06.35 UTC | null | 1,479,414 | null | 2,549,636 | null | 1 | 24 | java|spring|spring-mvc|spring-boot | 68,222 | <p>Use <code>http://localhost:8080/user/item/john</code> to submit your request instead. </p>
<p>You give Spring a value of "{john}" to the path variable <code>loginName</code>, so Spring get it with the "{}"</p>
<p><a href="http://docs.spring.io/spring/docs/current/spring-framework-reference/html/mvc.html" rel="nore... |
17,485,297 | How to instantiate an inner class with reflection in Java? | <p>I try to instantiate the inner class defined in the following Java code:</p>
<pre><code> public class Mother {
public class Child {
public void doStuff() {
// ...
}
}
}
</code></pre>
<p>When I try to get an instance of Child like this</p>
<pre><code> Class<?> c... | 17,485,341 | 2 | 3 | null | 2013-07-05 09:15:56.25 UTC | 19 | 2019-01-21 23:40:57.2 UTC | 2019-01-21 23:40:57.2 UTC | null | 363,573 | null | 363,573 | null | 1 | 68 | java|reflection|instantiationexception | 39,478 | <p>There's an extra "hidden" parameter, which is the instance of the enclosing class. You'll need to get at the constructor using <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html#getDeclaredConstructor%28java.lang.Class...%29" rel="noreferrer"><code>Class.getDeclaredConstructor</code></a> and then... |
17,225,229 | Using multiple conditions (AND) in SASS IF statement | <p>Using SASS, I would like to have multiple condition in IF statement </p>
<p><strong>What I use right now :</strong></p>
<pre><code>@function color-x ($alpha) {
@if $accent == red {@return red($alpha)}
@else if $accent == green {@return green($alpha)}
@else if $accent == blue {@return blue($al... | 17,226,136 | 2 | 0 | null | 2013-06-20 23:00:14.85 UTC | 19 | 2015-06-12 16:51:14.797 UTC | 2013-06-21 01:03:13.853 UTC | null | 344,543 | null | 769,551 | null | 1 | 74 | if-statement|sass | 62,122 | <p>From the Sass language reference documentation:</p>
<blockquote>
<p><strong>Boolean Operations</strong></p>
<p>SassScript supports <code>and</code>, <code>or</code>, and <code>not</code> operators for boolean values.</p>
</blockquote>
<p><a href="http://sass-lang.com/docs/yardoc/file.SASS_REFERENCE.html#boolean_oper... |
17,575,790 | Environment detection: node.js or browser | <p>I'm developping a JS-app that needs to work both on the client side and the server side (in Javascript on a browser and in Node.js), and I would like to be able to reuse the parts of the code that are used for both sides.</p>
<p>I have found out that <code>window</code> was a variable only accessible on Browsers, a... | 31,090,240 | 11 | 1 | null | 2013-07-10 16:15:57.99 UTC | 25 | 2022-05-15 13:42:04.847 UTC | 2013-07-10 16:23:26.943 UTC | null | 1,993,501 | null | 1,993,501 | null | 1 | 74 | javascript|node.js|coffeescript|browser-detection | 39,156 | <p><em>NOTE: This question had two parts, but because the title was "Environment detection: node.js or browser" - I will get to this part first, because I guess many people are coming here to look for an answer to that. A separate question might be in order.</em></p>
<p>In JavaScript variables can be redefine... |
30,324,532 | How to find text in a string using google script? | <p>I tried indexOf(), findText() and other few methods for finding a string pattern in a text in google app script. None of the above method works.</p>
<pre><code>var str="task is completed";
</code></pre>
<p>I'm getting this string from google spreadsheet.</p>
<p>I just want to find whether the above string contain... | 30,324,576 | 2 | 2 | null | 2015-05-19 11:36:36.307 UTC | 3 | 2022-06-30 18:11:40.47 UTC | 2015-05-19 11:38:03.66 UTC | null | 4,911,834 | null | 4,911,834 | null | 1 | 7 | javascript|google-apps-script|google-sheets | 48,570 | <p>You need to check if the <code>str</code> is present:</p>
<pre><code>if (str) {
if (str.indexOf('task') > -1) {
// Present
}
}
</code></pre>
<p>Alternatively, you can use <code>test</code> and <code>regex</code>:</p>
<pre><code>/task/.test("task is completed");
/task/.test(str);
</code></pre>
... |
26,003,086 | Launching into portrait-orientation from an iPhone 6 Plus home screen in landscape orientation results in wrong orientation | <p>The actual title for this question is longer than I can possibly fit:</p>
<p>Launching an app whose root view controller only supports portrait-orientation but which otherwise supports landscape orientations on an iPhone 6 Plus while the home screen is in a landscape orientation results in a limbo state where the a... | 26,003,087 | 13 | 3 | null | 2014-09-23 19:22:15.683 UTC | 25 | 2018-05-31 09:22:07.817 UTC | 2014-09-23 21:41:47.78 UTC | null | 1,078,579 | null | 1,078,579 | null | 1 | 58 | ios|iphone|ios8|uiinterfaceorientation | 26,540 | <p>This appears to be a bug in iOS 8 when using a UITabBarController as a root view controller. A workaround is to use a mostly vanilla UIViewController as the root view controller. This vanilla view controller will serve as the parent view controller of your tab bar controller:</p>
<pre><code>///---------------------... |
5,411,026 | List of CSS vendor prefixes? | <p>Besides the following list, are there other CSS vendor prefixes that are important for <em>web development</em>? Are my definitions correct? Should I be more specific about mobile browsers (mobile Webkit, e.g.)</p>
<ul>
<li><code>-khtml-</code> (Konqueror, <em>really</em> old Safari)</li>
<li><code>-moz-</code> (Fi... | 5,411,098 | 3 | 0 | null | 2011-03-23 20:11:17.38 UTC | 40 | 2021-10-29 08:20:25.33 UTC | 2016-09-30 18:12:14.827 UTC | null | 1,696,030 | null | 177,633 | null | 1 | 69 | css|vendor-prefix | 51,912 | <p>These are the ones I'm aware of:</p>
<ul>
<li><code>-ms-</code> Microsoft</li>
<li><code>mso-</code> Microsoft Office</li>
<li><code>-moz-</code> Mozilla Foundation (Gecko-based browsers)</li>
<li><code>-o-</code>, <code>-xv-</code> Opera Software</li>
<li><code>-atsc-</code> Advanced Television Standards Committee... |
15,069,764 | Autocomplete Not Showing Results That Are Returned | <p>I cannot get the results of a jquery autocomplete to show, although the php code returns json results. The jquery code is as follows:</p>
<pre><code>$("#newName").autocomplete({
source: function(request, response) {
$.ajax({
url: root + "/assets/php/autocomplete.php",
dataType: "... | 15,072,283 | 8 | 0 | null | 2013-02-25 14:53:06.717 UTC | null | 2022-05-23 15:07:08.093 UTC | null | null | null | null | 1,267,341 | null | 1 | 15 | jquery|autocomplete|jquery-ui-autocomplete | 44,280 | <p>I fixed the problem by adding to my master css file a z-index style for the autocomplete. Everything now works properly.</p>
<pre><code>.ui-autocomplete {
z-index: 100;
}
</code></pre> |
15,020,734 | Using NTLM authentication in Java applications | <p>I want to use Windows NTLM authentication in my Java application to authenticate intranet users transparently. The users should not notice any authentication if using their browsers (single sign-on).</p>
<p>I've found a few libs with NTLM support, but don't know which one to use:</p>
<ul>
<li><a href="http://spneg... | 15,028,292 | 5 | 1 | null | 2013-02-22 09:25:37.987 UTC | 9 | 2021-04-20 16:07:17.103 UTC | null | null | null | null | 238,134 | null | 1 | 17 | java|windows|security|authentication|ntlm | 60,999 | <p>Out of the above list, only ntlmv2-auth and Jespa support NTLMv2. Jespa is workable but commercial. ntlmv2-auth I haven't tried but it's based on the code from Liferay, which I've seen working before.</p>
<p>'ntlm-authentication-in-java' is only NTLMv1, which is old, insecure, and works in a dwindling number of env... |
15,344,955 | Hudson/Jenkins Git build all branches | <p>We have a lot of developers creating feature branches that I would like to build. Nightly we run a code quality tool that needs to run on every branch. I also would not like a static configuration because the number of branches changes every few weeks.</p> | 15,355,489 | 4 | 0 | null | 2013-03-11 17:35:44.53 UTC | 11 | 2021-03-17 12:43:39.243 UTC | null | null | null | null | 673,289 | null | 1 | 38 | git|jenkins|hudson | 27,991 | <p>In Git configuration there is a field 'Branch Specifier (blank for default): '
if you put there ** it will build all branches from all remotes.</p>
<p>having that you can use an environment variable ${GIT_BRANCH} e.g. to set a title for the build using <a href="https://wiki.jenkins-ci.org/display/JENKINS/Build+N... |
14,970,412 | Initialize Array of Objects using NSArray | <p>I'm pretty new to Objective-C and iOS so I've been playing around with the Picker View. I've defined a Person Class so that when you create a new Person it automatically gives that person a name and age.</p>
<pre><code>#import "Person.h"
@implementation Person
@synthesize personName, age;
-(id)init
{
self = ... | 14,970,464 | 5 | 0 | null | 2013-02-20 00:48:26.917 UTC | 4 | 2019-05-28 07:36:36.583 UTC | 2015-07-02 13:37:55.423 UTC | null | 800,452 | null | 800,452 | null | 1 | 42 | ios|objective-c|arrays|nsarray | 166,737 | <pre><code>NSMutableArray *persons = [NSMutableArray array];
for (int i = 0; i < myPersonsCount; i++) {
[persons addObject:[[Person alloc] init]];
}
NSArray *arrayOfPersons = [NSArray arrayWithArray:persons]; // if you want immutable array
</code></pre>
<p>also you can reach this without using NSMutableArray:</p... |
14,948,441 | Vim Can't Save File (E212) | <p>Sometimes when I create a file using <code>vim some/path/newfile</code>, vim lets me edit it, only to complain when I attempt to save my changes.</p>
<pre><code>E212 Can't open file for writing.
</code></pre>
<p>This appears to happen only when the new file is located in a system directory.</p>
<p><code>:w!</code... | 14,948,510 | 11 | 1 | null | 2013-02-19 01:42:37.187 UTC | 25 | 2022-03-26 11:07:30.253 UTC | null | null | null | null | 2,085,347 | null | 1 | 64 | macos|vim | 128,274 | <p>This will ask you for the root password, then save your changes as you requested:</p>
<pre><code>:w !sudo tee %
</code></pre>
<p>Then type (L)oad at the prompt, to re-load the file after it is saved.</p> |
28,037,539 | Prevent duplicates across multiple executions of copying records back into source table while changing one column | <p>I want to select <code>CustomerID</code>, <code>OrderTypeID</code>, and <code>LoanNumber</code> from <code>tblOrder</code> and insert it with a new <code>OrderTypeID</code> but same <code>CustomerID</code> and <code>LoanNumber</code>.
My query does that but it duplicates the values, every time the query is executed ... | 28,038,088 | 6 | 3 | null | 2015-01-20 03:58:43.547 UTC | 10 | 2022-01-11 22:29:40.273 UTC | 2022-01-11 22:29:40.273 UTC | null | 577,765 | null | 4,466,209 | null | 1 | 15 | sql-server|tsql|sql-server-2008|duplicates | 71,279 | <p>The first, and most important, issue here is <em>not</em> that your query inserts duplicates; it is that your table <em>allows</em> it to happen in the first place. Hence, you first need to create a UNIQUE INDEX on those 3 fields to disallow duplicates.</p>
<p>The second issue is how to handle the situation of when... |
8,011,581 | ARC, ivars in Blocks and Reference Cycles via Captured Self | <p>I’m working in a pure iOS5/ARC environment, so I can use __weak references as needed. I do reference ivars in a block in many situations, most notably, animation blocks that move views around, which are properties of say, my view controller class.</p>
<h3>My question:</h3>
<blockquote>
<p>In the most trivial use... | 8,011,611 | 2 | 0 | null | 2011-11-04 15:19:47.567 UTC | 15 | 2011-12-15 21:08:40.52 UTC | 2011-11-04 16:16:33.757 UTC | null | 19,679 | null | 535,054 | null | 1 | 26 | objective-c|ios|ios5|objective-c-blocks|automatic-ref-counting | 6,737 | <p>There is only a cycle here if self then goes on to hold a reference to the block (or something owned by self). If not you're good to go as the lifetime of the block is not dictated by the self it retained.</p>
<p>So in your particular example, you seem to be in the clear. Animation blocks don't need to participate ... |
8,352,260 | Why does the SqlParameter name/value constructor treat 0 as null? | <p>I observed a strange problem in a piece of code where an adhoc SQL query was not producing the expected output, even though its parameters matched records in the data source. I decided to enter the following test expression into the immediate window:</p>
<pre><code>new SqlParameter("Test", 0).Value
</code></pre>
<... | 8,352,277 | 2 | 1 | null | 2011-12-02 05:48:07.273 UTC | 3 | 2016-03-18 11:02:12.407 UTC | null | null | null | null | 428,051 | null | 1 | 32 | c#|sql-server|ado.net|sqlparameter | 8,273 | <p>As stated in the <a href="http://msdn.microsoft.com/en-us/library/0881fz2y.aspx" rel="noreferrer">documentation</a> for that constructor:</p>
<blockquote>
<p>When you specify an Object in the value parameter, the SqlDbType is inferred from the Microsoft .NET Framework type of the Object.</p>
<p>Use caution w... |
7,942,597 | Supporting Open In... menu item in my app for iOS Mail And Safari | <p>I need to have my app open documents from the Safari and Mail apps with that "Open In..." thing in the <code>UIDocumentInteractionController</code> class. How do I accomplish this?</p> | 8,023,211 | 2 | 0 | null | 2011-10-30 00:30:35.727 UTC | 42 | 2017-11-23 02:03:38.647 UTC | 2011-11-06 03:02:57.29 UTC | null | 224,988 | null | 945,847 | null | 1 | 49 | objective-c|ios|cocoa-touch|uidocumentinteraction | 34,012 | <p>I know this was extremely frustrating for me as a beginning programmer, or even as a moderately skilled one now. File I/O through the Mail and Safari apps involves very... interestingly named conventions within the app itself. So let's get our hands dirty with an Xcode project for iPhone. Open Xcode (I will be us... |
5,110,292 | Why is Clojure dynamically typed? | <p>One thing I like very much is reading about different programming languages. Currently, I'm learning Scala but that doesn't mean I'm not interested in Groovy, Clojure, Python, and many others. All these languages have a unique look and feel and some characteristic features. In the case of Clojure I don't understand ... | 5,110,590 | 5 | 5 | null | 2011-02-24 20:49:39.723 UTC | 10 | 2020-12-09 15:04:32.003 UTC | 2019-07-18 06:07:56.867 UTC | null | 1,303,324 | null | 497,600 | null | 1 | 59 | dynamic|functional-programming|clojure|language-design|paradigms | 17,007 | <p>I agree, a purely functional language can still have an interactive read-eval-print-loop, and would have an easier time with type inference. I assume Clojure wanted to attract lisp programmers by being "lisp for the jvm", and chose to be dynamic like other lisps. Another factor is that type systems need to be design... |
4,944,750 | How to subtract date/time in JavaScript? | <p>I have a field at a grid containing date/time and I need to know the difference between that and the current date/time. What could be the best way of doing so?</p>
<p>The dates are stored like <code>"2011-02-07 15:13:06"</code>.</p> | 4,944,782 | 5 | 3 | null | 2011-02-09 12:20:26.167 UTC | 22 | 2021-03-05 18:38:01.113 UTC | 2019-08-14 13:59:12.71 UTC | null | 4,642,212 | null | 132,640 | null | 1 | 215 | javascript|date | 431,205 | <p>This will give you the difference between two dates, in milliseconds</p>
<pre><code>var diff = Math.abs(date1 - date2);
</code></pre>
<p>In your example, it'd be</p>
<pre><code>var diff = Math.abs(new Date() - compareDate);
</code></pre>
<p>You need to make sure that <code>compareDate</code> is a valid <code>Dat... |
4,883,891 | Ruby on Rails production log rotation | <p>What is the best way to enable log rotation on a Ruby on Rails production app?</p>
<p>Is it by using logrotate on the hosting server or is there a set of options to use when initializing logger from the app?</p> | 4,883,967 | 6 | 1 | null | 2011-02-03 08:36:44.1 UTC | 97 | 2022-09-20 07:44:43.78 UTC | 2022-09-20 07:44:43.78 UTC | null | 5,409,748 | null | 449,483 | null | 1 | 183 | ruby-on-rails|logging|production-environment | 70,733 | <h1>Option 1: syslog + logrotate</h1>
<p>You can configure rails, to use the systems log tools. </p>
<p>An example in <em>config/environments/production.rb</em>.</p>
<pre><code># Use a different logger for distributed setups
config.logger = SyslogLogger.new
</code></pre>
<p>That way, you log to syslog, and can use ... |
5,186,394 | Using conditional (?:) operator for method selection in C# (3.0)? | <p>I'm refactoring some code.</p>
<p>Right now there are quite a few places with functions like this:</p>
<pre><code>string error;
if (a) {
error = f1(a, long, parameter, list);
}
else {
error = f2(the_same, long, parameter, list);
}
</code></pre>
<p>before refactoring f1 and f2 (which are large, but do simila... | 5,186,445 | 7 | 1 | null | 2011-03-03 20:52:44.653 UTC | 7 | 2011-03-03 21:07:30 UTC | 2011-03-03 21:07:30 UTC | null | 18,255 | null | 18,255 | null | 1 | 32 | c#|.net|.net-3.5 | 10,431 | <p>You can do that by declaring a delegate, as you pointed out.</p>
<p>I notice that you wrote that you are doing this in quite a few places. Another alternative that might be more suitable is to use interfaces. Instantiate one of two different types depending on the value of a, then call the method on that object.</p... |
4,948,190 | git repository sync between computers, when moving around? | <p>Let's say that I have a desktop pc and a laptop,
and sometimes I work on the desktop and sometimes I work on the laptop.</p>
<p>What is the easiest way to move a git repository back and forth?</p>
<p>I want the git repositories to be identical,
so that I can continue where I left of at the other computer.</p>
<... | 4,948,264 | 8 | 1 | null | 2011-02-09 17:18:05.453 UTC | 51 | 2020-07-26 19:25:16.293 UTC | 2011-02-14 07:21:08.937 UTC | null | 51,425 | null | 51,425 | null | 1 | 92 | git|version-control | 54,428 | <p>I think, there are multiple approaches. I will just describe, how I handle this</p>
<p>I have one netbook as a 24/7 server, that holds multiple git-repositories. From/To there I push and pull changes via SSH. For access from outside I use dyndns.org. It works fine, especially because I have more than two systems, t... |
12,586,340 | Regex to find special characters in Java | <p>I can use </p>
<pre><code>var regex = /[$&+,:;=?@#|]/;
if(elem.match(regex)) { // do something
}
</code></pre>
<p>to find whether there is any special characters in string in Javascript.</p>
<p>How can I use the similar regular expression in Java?</p>
<p>I have tried:</p>
<pre><code>str.match("\\="); // r... | 12,586,471 | 4 | 1 | null | 2012-09-25 15:34:54.553 UTC | 2 | 2016-12-31 21:16:58.84 UTC | 2012-09-25 16:20:14.88 UTC | null | 5,640 | null | 924,578 | null | 1 | 6 | java|regex | 58,778 | <p>Try this.</p>
<pre><code>Pattern regex = Pattern.compile("[$&+,:;=?@#|]");
Matcher matcher = regex.matcher("123=456");
if (matcher.find()){
// Do something
}
</code></pre>
<p>EDIT: <code>matches()</code> checks all the string and <code>find()</code> finds it in any part of the string.</p>
<p>A link: <a hr... |
12,264,970 | Why is my program slow when looping over exactly 8192 elements? | <p>Here is the extract from the program in question. The matrix <code>img[][]</code> has the size SIZE×SIZE, and is initialized at:</p>
<p><code>img[j][i] = 2 * j + i</code></p>
<p>Then, you make a matrix <code>res[][]</code>, and each field in here is made to be the average of the 9 fields around it in the img matri... | 12,265,928 | 2 | 15 | null | 2012-09-04 13:51:31.017 UTC | 320 | 2017-10-11 12:08:18.863 UTC | 2012-09-18 14:59:40.147 UTC | null | 50,776 | anon | null | null | 1 | 791 | c++|performance|memory-management|gcc | 96,084 | <p>The difference is caused by the same super-alignment issue from the following related questions:</p>
<ul>
<li><a href="https://stackoverflow.com/q/11413855/922184">Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?</a></li>
<li><a href="https://stackoverflow.com/q/7905760/92218... |
12,179,271 | Meaning of @classmethod and @staticmethod for beginner | <p>What do <code>@classmethod</code> and <code>@staticmethod</code> mean in Python, and how are they different? <em>When</em> should I use them, <em>why</em> should I use them, and <em>how</em> should I use them?</p>
<p>As far as I understand, <code>@classmethod</code> tells a class that it's a method which should be i... | 12,179,752 | 12 | 0 | null | 2012-08-29 13:37:33.443 UTC | 1,071 | 2022-08-18 22:34:33.607 UTC | 2022-08-18 22:16:08.813 UTC | null | 4,621,513 | user1632861 | null | null | 1 | 1,834 | python|oop|static-methods|class-method | 737,727 | <p>Though <code>classmethod</code> and <code>staticmethod</code> are quite similar, there's a slight difference in usage for both entities: <code>classmethod</code> must have a reference to a class object as the first parameter, whereas <code>staticmethod</code> can have no parameters at all.</p>
<h2>Example</h2>
<pre>... |
12,459,779 | query specified join fetching, but the owner of the fetched association was not present in the select list | <p>I'm selecting two id columns but get error specified:</p>
<pre><code>org.hibernate.QueryException: **query specified join fetching, but the owner of the fetched association was not present in the select list**
[FromElement{explicit,not a collection join,fetch join,fetch non-lazy properties,classAlias=r,role=null,... | 12,459,909 | 5 | 2 | null | 2012-09-17 13:02:15.167 UTC | 8 | 2022-06-01 01:39:36.547 UTC | 2017-09-01 19:27:45.567 UTC | null | 711,129 | null | 1,035,646 | null | 1 | 111 | hibernate|join|fetch | 129,315 | <p>Use regular <code>join</code> instead of <code>join fetch</code> (by the way, it's <code>inner</code> by default):</p>
<pre><code>String hql = " select ec.id as entityChangeId, r.id as revisionId from EntityChange as ec " +
" join ec.revision as r " + ...
</code></pre>
<p>As error message tells you, <code... |
12,433,695 | Extract elements of list at odd positions | <p>So I want to create a list which is a sublist of some existing list.</p>
<p>For example,</p>
<p><code>L = [1, 2, 3, 4, 5, 6, 7]</code>, I want to create a sublist <code>li</code> such that <code>li</code> contains all the elements in <code>L</code> at odd positions.</p>
<p>While I can do it by</p>
<pre><code>L =... | 12,433,705 | 4 | 4 | null | 2012-09-15 01:05:25.1 UTC | 35 | 2021-10-03 09:46:08.537 UTC | 2016-01-20 09:27:42.737 UTC | null | 231,298 | null | 976,093 | null | 1 | 132 | python|list|slice | 178,688 | <h2>Solution</h2>
<p>Yes, you can:</p>
<pre><code>l = L[1::2]
</code></pre>
<p>And this is all. The result will contain the elements placed on the following positions (<code>0</code>-based, so first element is at position <code>0</code>, second at <code>1</code> etc.):</p>
<pre><code>1, 3, 5
</code></pre>
<p>so th... |
18,771,963 | pandas efficient dataframe set row | <p>First I have the following empty DataFrame preallocated:</p>
<pre><code>df=DataFrame(columns=range(10000),index=range(1000))
</code></pre>
<p>Then I want to update the <code>df</code> row by row (efficiently) with a length-10000 numpy array as data. My problem is: I don't even have an idea what method of DataFrame... | 18,772,565 | 2 | 4 | null | 2013-09-12 18:40:02.79 UTC | 2 | 2013-09-12 19:23:14.1 UTC | null | null | null | null | 765,398 | null | 1 | 20 | python|pandas|dataframe | 42,889 | <p>Here's 3 methods, only 100 columns, 1000 rows</p>
<pre><code>In [5]: row = np.random.randn(100)
</code></pre>
<p>Row wise assignment</p>
<pre><code>In [6]: def method1():
...: df = DataFrame(columns=range(100),index=range(1000))
...: for i in xrange(len(df)):
...: df.iloc[i] = row
...:... |
3,468,177 | RESTful way to send commands | <p>How do you send "commands" to a RESTful server?</p>
<p>Use case: My server caches certain information so that it does not have to read the database every time that information is requested. I need a way to send a command from my client application to tell the server to flush the cache. Would you use <code>POST</cod... | 5,625,525 | 3 | 2 | null | 2010-08-12 13:32:30.663 UTC | 28 | 2019-03-21 16:40:30.443 UTC | 2019-03-21 16:40:30.443 UTC | null | 1,746,685 | null | 96,233 | null | 1 | 61 | rest|web-applications | 28,533 | <p>I have come across such a situation a lot in a past project. Since REST is well...about resource, it is not always clear how to deal with things that are Really RPC in nature.</p>
<p>An easy way to get around this is to think of it as the <em>bureaucratic part of rest</em>, the request can be a resource itself :</p... |
18,880,654 | Why do I get the same sequence for every run with std::random_device with mingw gcc4.8.1? | <p>I use the following code to test the C++ <code><random></code> library.</p>
<p>Why do I get the exact same sequence for every run of the compiled executable? Is <code>rd()</code> deterministic upon compilation? How do I get different output for each run?</p>
<p>GCC 4.8.1 on Windows 7 64bit. Using MinGW distr... | 18,880,689 | 5 | 10 | null | 2013-09-18 19:27:11.68 UTC | 17 | 2020-06-19 21:15:18.767 UTC | 2020-05-01 02:04:21.337 UTC | null | 65,863 | null | 305,669 | null | 1 | 71 | c++|c++11|random|stl | 20,822 | <p>From <a href="http://en.cppreference.com/w/cpp/numeric/random/random_device" rel="noreferrer">http://en.cppreference.com/w/cpp/numeric/random/random_device</a>:</p>
<blockquote>
<p>Note that std::random_device may be implemented in terms of a pseudo-random number engine if a non-deterministic source (e.g. a hardw... |
11,445,523 | python & smtplib: Is sending mail via gmail using oauth2 possible? | <p>So I can login to and send mail through gmail using smtplib (using the script below), but I was just wondering if using oauth2 was an option like with imaplib? I didn't see anything on the smtplib documentation page about oauth and I haven't found anything googling. Thanks.</p>
<pre><code>#! /usr/bin/python
impor... | 11,448,844 | 1 | 1 | null | 2012-07-12 05:32:21.447 UTC | 11 | 2016-03-03 20:30:59.383 UTC | 2012-11-15 14:13:40.097 UTC | null | 569,101 | null | 813,149 | null | 1 | 10 | python|oauth|oauth-2.0|smtplib | 14,778 | <p>Interesting, I think it is possible, I found the following links <br/>
<a href="https://developers.google.com/google-apps/gmail/oauth_overview" rel="noreferrer">https://developers.google.com/google-apps/gmail/oauth_overview</a><br/></p>
<p><b>UPDATE</b><br/>
<a href="https://github.com/google/gmail-oauth2-tools/wik... |
11,433,886 | Sorting A List Comprehension In One Statement | <p>I noticed something I didn't expect when writing a script this morning. I tried to use a list comprehension and sort it all in one statement and got a surprising result. The following code summarizes my general use case, but is simplified for this question:</p>
<pre><code>Transaction = namedtuple('Transaction', ['c... | 11,433,911 | 3 | 1 | null | 2012-07-11 13:36:50.87 UTC | 6 | 2012-07-11 13:46:47.617 UTC | null | null | null | null | 1,432,934 | null | 1 | 31 | python|list-comprehension | 31,869 | <p>The method <code>list.sort()</code> is sorting the list in place, and as all mutating methods it returns <code>None</code>. Use the built-in function <a href="http://docs.python.org/library/functions.html#sorted"><code>sorted()</code></a> to return a new sorted list.</p>
<pre><code>result = sorted((trans for trans... |
11,270,509 | putting a remote file into hadoop without copying it to local disk | <p>I am writing a shell script to put data into hadoop as soon as they are generated. I can ssh to my master node, copy the files to a folder over there and then put them into hadoop. I am looking for a shell command to get rid of copying the file to the local disk on master node. to better explain what I need, here be... | 11,270,559 | 5 | 1 | null | 2012-06-30 00:33:44.437 UTC | 21 | 2021-09-15 08:52:34.443 UTC | null | null | null | null | 793,677 | null | 1 | 37 | unix|ssh|hadoop|copying|piping | 50,888 | <p>Try this (untested):</p>
<pre><code>cat test.txt | ssh username@masternode "hadoop dfs -put - hadoopFoldername/test.txt"
</code></pre>
<p>I've used similar tricks to copy directories around:</p>
<pre><code>tar cf - . | ssh remote "(cd /destination && tar xvf -)"
</code></pre>
<p>This sends the output of ... |
11,299,208 | How to Synchronize Android Database with an online SQL Server? | <p>I am developing an Android App that stores different types of data in the built-in SQLite provided by the Android Platform.</p>
<p>Inside the App I have placed a "Sync" button which is supposed to Sync the data between the local SQLite Database, with an Online SQL Server database on my server.</p>
<p>What is the w... | 11,299,639 | 1 | 4 | null | 2012-07-02 18:31:05.557 UTC | 34 | 2018-05-07 08:53:25.91 UTC | 2018-05-07 08:53:25.91 UTC | null | 1,143,634 | null | 1,496,831 | null | 1 | 55 | android|sql|sqlite|synchronization | 41,533 | <p>You should take a look at the SampleSyncAdapter project in the Android SDK demos (<a href="http://developer.android.com/training/sync-adapters/index.html" rel="noreferrer">Transferring Data Using Sync Adapters</a>).
It shows you how to do synchronization "Android style", which requires no user interaction by manuall... |
11,162,406 | Open and write data to text file using Bash? | <p>How can I write data to a text file automatically by shell scripting in Linux?</p>
<p>I was able to open the file. However, I don't know how to write data to it.</p> | 11,162,510 | 12 | 1 | null | 2012-06-22 18:52:22.533 UTC | 64 | 2022-03-15 13:14:53.943 UTC | 2019-03-15 02:58:08.413 UTC | null | 608,639 | null | 1,055,090 | null | 1 | 329 | bash|shell | 890,769 | <p>The short answer:</p>
<pre class="lang-sh prettyprint-override"><code>echo "some data for the file" >> fileName
</code></pre>
<p>However, <a href="https://unix.stackexchange.com/a/58312/364698"><code>echo</code> doesn't deal with end of line characters (EOFs) in an ideal way</a>. So, if you're gonna ... |
13,213,378 | What is causing a "Maximum function nesting level" error in Symfony 2.1 and Twig? | <p>I have a project on Symfony 2.1. After updating composer components (Gedemo, Symfony core, Doctrine, Twig, etc..) I have the following error:</p>
<pre><code>Fatal error: Maximum function nesting level of '100' reached, aborting! in /var/www/{path}/vendor/twig/twig/lib/Twig/Token.php on line 78
</code></pre>
<p>I h... | 13,213,409 | 5 | 5 | null | 2012-11-03 20:51:20.267 UTC | 5 | 2018-06-16 22:16:31.37 UTC | 2013-02-02 18:12:20.287 UTC | null | 19,679 | null | 1,787,682 | null | 1 | 29 | symfony|twig | 31,482 | <p>Find the <code>xdebug.ini</code> file:</p>
<pre><code>$ locate xdebug.ini
/etc/php5/conf.d/20-xdebug.ini
/etc/php5/mods-available/xdebug.ini
</code></pre>
<p>In my case the file is <code>/etc/php5/conf.d/20-xdebug.ini</code>. Open it and add this line:</p>
<pre><code>xdebug.max_nesting_level = 1000
</code></pre>
... |
13,019,942 | Why can't I get `pip install lxml` to work within a virtualenv? | <p>Note: I'm using virtualenvwrapper.</p>
<p>Before activating the virtual environment:</p>
<pre><code>$ pip install lxml
Requirement already satisfied (use --upgrade to upgrade): lxml in /usr/lib/python2.7/dist-packages
Cleaning up...
</code></pre>
<p>After activating the virtual environment:</p>
<pre><code>(t... | 13,020,013 | 4 | 3 | null | 2012-10-22 21:11:10.197 UTC | 18 | 2018-07-18 17:24:07.773 UTC | 2013-11-22 11:43:50.233 UTC | null | 785,400 | null | 785,400 | null | 1 | 70 | python|virtualenv|virtualenvwrapper | 60,962 | <p>You probably already have lxml installed on your system, perhaps installed due to a system package. Thus, the first attempt (<code>pip install lxml</code> without an active virtualenv) doesn't fail, but it also doesn't install it; it really doesn't do anything.</p>
<p>In a virtualenv, by default, the system package... |
12,674,572 | Proper usage of .net MVC Html.CheckBoxFor | <p>All I want to know is the proper syntax for the <code>Html.CheckBoxFor</code> HTML helper in ASP.NET MVC.</p>
<p>What I'm trying to accomplish is for the check-box to be initially checked with an ID value so I can reference it in the Controller to see if it's still checked or not.</p>
<p>Would below be the proper ... | 12,674,731 | 7 | 3 | null | 2012-10-01 13:47:26.95 UTC | 15 | 2017-08-03 20:07:14.577 UTC | 2013-11-12 14:48:22.173 UTC | null | 27,756 | null | 856,488 | null | 1 | 79 | asp.net-mvc|checkboxfor | 341,905 | <h2>That isn't the proper syntax</h2>
<p>The first parameter is <strong>not</strong> checkbox value but rather view model binding for the checkbox hence:</p>
<pre><code>@Html.CheckBoxFor(m => m.SomeBooleanProperty, new { @checked = "checked" });
</code></pre>
<p>The first parameter must identify a boolean propert... |
13,032,701 | How to remove folders with a certain name | <p>In Linux, how do I remove folders with a certain name which are nested deep in a folder hierarchy?</p>
<p>The following paths are under a folder and I would like to remove all folders named <code>a</code>. </p>
<pre><code>1/2/3/a
1/2/3/b
10/20/30/a
10/20/30/b
100/200/300/a
100/200/300/b
</code></pre>
<p>What Lin... | 13,032,768 | 12 | 1 | null | 2012-10-23 14:26:23.213 UTC | 70 | 2022-03-01 03:41:31.07 UTC | 2013-11-19 20:33:43.383 UTC | null | 445,131 | null | 136,088 | null | 1 | 209 | linux|unix|rm | 152,749 | <p>If the target directory is empty, use find, filter with only directories, filter by name, execute rmdir:</p>
<pre><code>find . -type d -name a -exec rmdir {} \;
</code></pre>
<p>If you want to recursively delete its contents, replace <code>-exec rmdir {} \;</code> with <code>-delete</code> or <code>-prune -exec rm -... |
16,667,251 | Query to get only numbers from a string | <p>I have data like this:</p>
<pre><code>string 1: 003Preliminary Examination Plan
string 2: Coordination005
string 3: Balance1000sheet
</code></pre>
<p>The output I expect is </p>
<pre><code>string 1: 003
string 2: 005
string 3: 1000
</code></pre>
<p>And I want to implement it in SQL.</p> | 16,667,431 | 22 | 1 | null | 2013-05-21 10:00:54.127 UTC | 36 | 2022-08-24 10:07:50.893 UTC | 2019-11-25 10:05:20.013 UTC | null | 1,127,428 | null | 2,404,950 | null | 1 | 93 | sql|sql-server | 415,288 | <p>First create this <strong><code>UDF</code></strong></p>
<pre><code>CREATE FUNCTION dbo.udf_GetNumeric
(
@strAlphaNumeric VARCHAR(256)
)
RETURNS VARCHAR(256)
AS
BEGIN
DECLARE @intAlpha INT
SET @intAlpha = PATINDEX('%[^0-9]%', @strAlphaNumeric)
BEGIN
WHILE @intAlpha > 0
BEGIN
SET @strAlphaNum... |
16,908,084 | Bash script to calculate time elapsed | <p>I am writing a script in bash to calculate the time elapsed for the execution of my commands, consider:</p>
<pre><code>STARTTIME=$(date +%s)
#command block that takes time to complete...
#........
ENDTIME=$(date +%s)
echo "It takes $($ENDTIME - $STARTTIME) seconds to complete this task..."
</code></pre>
<p>I guess... | 16,908,239 | 11 | 1 | null | 2013-06-04 00:41:27.847 UTC | 37 | 2022-07-30 08:49:34.39 UTC | 2018-06-14 23:06:10.543 UTC | null | 6,862,601 | null | 175,296 | null | 1 | 153 | linux|bash|shell | 149,535 | <p>Either <code>$(())</code> or <code>$[]</code> will work for computing the result of an arithmetic operation. You're using <code>$()</code> which is simply taking the string and evaluating it as a command. It's a bit of a subtle distinction. Hope this helps.</p>
<p>As tink pointed out in the comments on this answ... |
4,228,261 | Understanding the purpose of some assembly statements | <p>I am trying to understand some assembly code and managed to finish most of it except a few lines. I am able to understand most of what is happening inside but am not able to fully understand what (and why it) is happening at the beginning and ending of the code. Can someone shed some light on this?</p>
<pre><code>i... | 4,228,936 | 2 | 5 | null | 2010-11-19 18:39:54.263 UTC | 18 | 2015-07-08 14:37:42.373 UTC | 2010-11-19 18:43:32.27 UTC | null | 459,640 | null | 184,046 | null | 1 | 11 | c|assembly|x86 | 17,023 | <p>The stack grows <strong>downward</strong>. A <code>push</code> subtracts from the stack pointer (esp) and a <code>pop</code> adds to esp. You have to keep that in mind to understand a lot of this.</p>
<pre><code>8048394:8d 4c 24 04 lea 0x4(%esp),%ecx ; ??
</code></pre>
<p>lea = Load Effe... |
4,731,774 | How to Read / Improve C.R.A.P Index Calculated by PHP | <p>I just started working with PHPUnit and its colorful code coverage reports. I understand all the numbers and percentages save one: The C.R.A.P index. Can anyone offer me a solid explanation of what it means, how to analyze it and how to lower it?</p> | 4,733,574 | 2 | 0 | null | 2011-01-19 04:36:23.963 UTC | 39 | 2018-05-24 09:42:43.477 UTC | 2013-09-12 02:56:51.217 UTC | null | 385,273 | null | 122,164 | null | 1 | 76 | php|unit-testing|phpunit | 17,621 | <p><a href="https://stackoverflow.com/a/4731869/5441">@Toader Mihai offered a solid explanation.</a> (+1 from me)</p>
<h2>How to lower it:</h2>
<p>Write less complex code OR write better tested code. (See the graph below)</p>
<p><strong>Better tested Code ?</strong></p>
<p>In this context this just means: A higher ... |
41,511,587 | JavaScript error: Cannot read property 'includes' of undefined | <p>I want to check if a <code>data.objectId</code> already exists in the array <code>msgArr</code>. For that I am running the code below:</p>
<pre><code>var exists = msgArr.objectId.includes(data.objectId);
if(exists === false){
msgArr.push({"objectId":data.objectId,"latLont":data.latLont,"isOnline":data.isOnline}... | 41,511,712 | 3 | 6 | null | 2017-01-06 18:02:43.767 UTC | 4 | 2019-08-08 18:09:11.837 UTC | 2019-08-08 18:09:11.837 UTC | null | 1,264,804 | null | 6,287,404 | null | 1 | 8 | javascript|typescript|ecmascript-6 | 82,156 | <p>As the comments say: the javascript array object has no property <code>objectId</code>.<br>
Looking at the objects in this array it's clear that they have it, so to check if a certain element exists you can do so using <a href="https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Array/some"... |
41,272,257 | mcrypt is deprecated, what is the alternative? | <p>The mcrypt-extension is <a href="http://php.net/manual/en/migration71.deprecated.php#migration71.deprecated.ext-mcrypt" rel="noreferrer">deprecated</a> will be removed in PHP 7.2 according to the comment posted <a href="https://bugs.php.net/bug.php?id=73734" rel="noreferrer">here</a>. So I am looking for an alternat... | 41,272,680 | 10 | 11 | null | 2016-12-21 21:34:12.417 UTC | 30 | 2020-08-18 13:15:45.377 UTC | 2018-01-05 11:06:31.01 UTC | null | 55,075 | null | 4,977,904 | null | 1 | 118 | php|encryption|passwords|php-7|mcrypt | 194,413 | <p>It's best practice to hash passwords so they are not decryptable. This makes things slightly more difficult for attackers that may have gained access to your database or files.</p>
<p>If you must encrypt your data and have it decryptable, a guide to secure encryption/decryption is available at <a href="https://para... |
41,596,121 | Does VBA Have a Ternary Operator? | <p>I come from the beautiful world of Obj C, which is based on the C programming language, and I've fallen in love with finding quirky ways to save space. However, I've looked through as much documentation as I can and I can't find anything juicy on VBA that will shorten this syntax:</p>
<pre><code>If boolVar = True T... | 41,596,160 | 3 | 13 | null | 2017-01-11 16:39:24.853 UTC | 3 | 2020-01-28 10:22:54.867 UTC | 2020-01-28 10:22:54.867 UTC | null | 11,636,588 | null | 2,353,523 | null | 1 | 32 | excel|vba | 30,046 | <pre><code>Sub test()
Dim x As Long
Dim y As Long
y = 1
x = IIf(y = 1, 1, 2)
End Sub
</code></pre> |
9,858,654 | "ORA-00922: missing or invalid option" when creating tables | <p>I entered the following SQL commands in Oracle but it complained "ORA-00922: missing or invalid option"</p>
<pre><code>CREATE TABLE Student (
StuID NUMBER(15),
StuName VARCHAR2(50),
Phone VARCHAR2(20),
PRIMARY KEY (StuID))
CREATE TABLE Program (
ProCode VARCHAR2(12),
ProTitl... | 9,859,157 | 3 | 9 | null | 2012-03-25 07:51:45.6 UTC | 1 | 2021-08-12 01:52:14.14 UTC | 2012-03-25 07:55:04.943 UTC | null | 601,179 | null | 1,276,521 | null | 1 | 5 | sql|oracle | 59,067 | <p>If you are using the dreaded HTML GUI (inside the browser) of OracleXE then that does not support running more than one statement. </p>
<p>Use SQL Developer, SQL*Plus or any other GUI tool instead.</p> |
10,238,826 | CSS class and descendant selectors practices | <p>I would like to form a better understanding of when it is appropriate to use classes to target content as opposed to other available options, specifically, descendant selectors.</p>
<p>In many cases, instead of using classes, it is possible to use descendant selectors to target the same elements. If the same thing ... | 10,238,984 | 3 | 1 | null | 2012-04-20 00:48:37.667 UTC | 8 | 2012-04-20 02:56:23.843 UTC | 2012-04-20 00:56:00.873 UTC | null | 825,789 | null | 1,343,020 | null | 1 | 8 | html|css-selectors|css | 13,979 | <p>Descendant selectors allow you to avoid embedding class information in your html. This may be convenient when the wrapping block is a logical container. For example, if you have constructed a table using <code>div</code> tags and you have hundreds, or thousands, of rows you could potentially cut down your document... |
9,989,785 | Technique for carrying metadata to View Models with AutoMapper | <p>I use AutoMapper to map my domain objects to my view models. I have metadata in my domain layer, that I would like to carry over to the view layer and into ModelMetadata. (This metadata is not UI logic, but provides necessary information to my views). </p>
<p>Right now, my solution is to use a separate MetadataP... | 10,100,042 | 3 | 1 | null | 2012-04-03 08:35:34.143 UTC | 17 | 2017-03-03 09:36:26.98 UTC | null | null | null | null | 344,211 | null | 1 | 16 | asp.net-mvc-3|asp.net-mvc-2|automapper|modelmetadata|modelmetadataprovider | 5,308 | <p>I use the approach below to automatically copy data annotations from my entities to my view model. This ensures that things like StringLength and Required values are always the same for entity/viewmodel.</p>
<p>It works using the Automapper configuration, so works if the properties are named differently on the view... |
10,046,027 | Having trouble downloading Git archive tarballs from Private Repo | <p>I need the ability to download our application at specific tags, but I am unable to find a working solution for this. Downloading tarballs based on git tag seems promising but I am unable to get it working using Curl. I have tried the following but all I get back is the source for the github 404 page.</p>
<pre><cod... | 10,053,425 | 3 | 2 | null | 2012-04-06 16:05:24.77 UTC | 11 | 2015-05-29 15:02:32.373 UTC | 2012-04-19 13:11:39.34 UTC | null | 1,317,806 | null | 1,317,806 | null | 1 | 22 | git|github | 23,274 | <p>For public repo, you have <a href="https://gist.github.com/758124" rel="nofollow noreferrer">this gist</a> listing some examples:</p>
<pre><code>wget --no-check-certificate https://github.com/sebastianbergmann/phpunit/tarball/3.5.5 -O ~/tmp/cake_phpunit/phpunit.tgz
</code></pre>
<p>For a private repo, try passing ... |
28,220,636 | View SQLite database on device in Android Studio | <p>I am using the latest version of Android Studio. When I run my app on the emulator, I am able to view my database by going through:</p>
<p><code>tools -> Android Device Monitor -> clicking on the emulator in the left panel -> file explorer -> data -> data -> com.project-name</code></p>
<p>But thi... | 33,233,232 | 5 | 6 | null | 2015-01-29 17:14:26.78 UTC | 9 | 2021-10-12 01:49:51.363 UTC | 2017-05-23 12:25:50.553 UTC | null | -1 | null | 2,058,547 | null | 1 | 22 | android|sqlite|android-studio | 59,718 | <h1>Connect to Sqlite3 via ADB Shell</h1>
<p>I haven't found any way to do that in Android Studio, but I access the db with a remote shell instead of pulling the file each time.</p>
<p>Find all info here:
<a href="http://developer.android.com/tools/help/adb.html#sqlite" rel="noreferrer">http://developer.android.com/t... |
11,787,558 | SQL Injection attack - What does this do? | <p>I have detected some failed SQL injection attacks on my website.
The failed queries are of the form:</p>
<blockquote>
<p><code>SELECT 6106 FROM(SELECT COUNT(*),':sjw:1:ukt:1'x FROM
information_schema.tables GROUP BY x)</code></p>
</blockquote>
<p>The <code>':sjw:1:ukt:1'</code> part is specially constructed wi... | 19,620,164 | 3 | 3 | null | 2012-08-03 00:07:03.287 UTC | 9 | 2014-03-28 15:38:00.983 UTC | 2014-03-28 15:38:00.983 UTC | null | 177,663 | null | 219,564 | null | 1 | 14 | mysql|security|sql-injection | 9,508 | <h2>What the attack really does</h2>
<p>There is a subtle but clever detail about this attack that other answerers missed. Notice the error message <code>Duplicate entry ':sjw:1:ukt:1' for key 'group_key'</code>. The string <code>:sjw:1:ukt:1</code> is actually the result of an expression evaluated by your MySQL serve... |
11,743,809 | How can a border be set around multiple cells in excel using C# | <p>I am working on a project that creates excel files.</p>
<p>I am having trouble placing a border on multiple cells to organize the excel file. </p>
<p>Let's say I want a border from cell B5 to B10. There shouldn't be borders between B5, B6, B7,...</p>
<p>Currently, I have this code: </p>
<pre><code>workSheet_rang... | 11,744,272 | 8 | 1 | null | 2012-07-31 15:37:13.2 UTC | 1 | 2020-06-14 15:07:52.473 UTC | 2015-08-07 22:14:42.36 UTC | null | 2,940,627 | null | 1,565,785 | null | 1 | 14 | c#|excel|border | 61,592 | <p>You need to individually set these</p>
<pre><code>.Borders[Excel.XlBordersIndex.xlEdgeBottom]
.Borders[Excel.XlBordersIndex.xlEdgeRight]
.Borders[Excel.XlBordersIndex.xlEdgeLeft]
.Borders[Excel.XlBordersIndex.xlEdgeTop]
</code></pre> |
12,018,681 | Android TLS connection and self signed certificate | <p>I'm trying to connect to a node.js based TLS server from my Android app. Naturally it fails becouse I'm using a self-signed certificate.</p>
<p>Is there anyway I can just add the certificate to my app and have Android trust it somehow? Note, I'm not using HTTPS, this is a TLS over TCP connection.</p> | 12,150,903 | 2 | 0 | null | 2012-08-18 12:45:02.137 UTC | 10 | 2016-01-20 02:14:26.757 UTC | null | null | null | null | 636,967 | null | 1 | 17 | android|ssl | 16,962 | <p>After a lot of reading around, I came up with an answer.</p>
<p>A pretty good guide is here: <a href="http://nelenkov.blogspot.no/2011/12/using-custom-certificate-trust-store-on.html" rel="noreferrer">http://nelenkov.blogspot.no/2011/12/using-custom-certificate-trust-store-on.html</a></p>
<p>Now, since I'm not usi... |
11,801,278 | Accessing Meteor production database | <p>To check out what's in the (production) database for <code>blah.meteor.com</code> I thought we would just do:</p>
<pre><code>meteor mongo --url http://blah.meteor.com/
</code></pre>
<p>But instead I get a URI:</p>
<pre><code>mongodb://client:984dae4c-04fb-c8bb-68f6-ed83602435cc@skybreak.member1.mongolayer.com:270... | 11,801,719 | 3 | 0 | null | 2012-08-03 18:28:09.427 UTC | 27 | 2017-08-02 07:06:43.697 UTC | 2017-09-22 17:57:57.377 UTC | null | -1 | null | 594,601 | null | 1 | 44 | mongodb|meteor|production|database | 36,280 | <p>You should use <code>meteor mongo http://blah.meteor.com</code>; or even shorter <code>meteor mongo blah.meteor.com</code>.</p>
<p>For documentation you can run <code>meteor help mongo</code>. Extract from running the help command above:</p>
<blockquote>
<p>Instead of opening a shell, specifying --url (-U) will ... |
19,962,608 | Javascript character count | <p>Example here: <a href="http://jsfiddle.net/67XDq/1/" rel="noreferrer">http://jsfiddle.net/67XDq/1/</a></p>
<p>I have the following HTML:</p>
<pre><code><tr id="rq17">
<td class='qnum'>17.</td>
<td class='qtext'>Questions? <i>Maximum of 500 characters - <input style="color:r... | 19,962,742 | 4 | 5 | null | 2013-11-13 19:26:13.143 UTC | 4 | 2019-02-14 22:17:40.71 UTC | 2013-11-13 19:31:14.36 UTC | null | 322,131 | null | 322,131 | null | 1 | 6 | javascript|html|character | 46,604 | <p>There are two issues in the fiddle</p>
<ul>
<li>no form element</li>
<li>script mode was onload, which means that window object didnt have <code>textCounter</code> function</li>
</ul>
<p>see updated fiddle <a href="http://jsfiddle.net/67XDq/7/" rel="nofollow noreferrer">http://jsfiddle.net/67XDq/7/</a>, markup:</p... |
3,736,210 | How to execute a shell script from C in Linux? | <p>How can I execute a shell script from C in Linux?</p> | 3,736,607 | 6 | 0 | null | 2010-09-17 14:29:13.093 UTC | 31 | 2017-07-20 15:34:05.28 UTC | null | null | null | null | 218,471 | null | 1 | 69 | c|linux|shell | 142,921 | <p>It depends on what you want to do with the script (or any other program you want to run).</p>
<p>If you just want to run the script <a href="http://man7.org/linux/man-pages/man3/system.3.html" rel="noreferrer"><code>system</code></a> is the easiest thing to do, but it does some other stuff too, including running a ... |
3,354,330 | Difference between string and text in rails? | <p>I'm making a new web app using Rails, and was wondering, what's the difference between <code>string</code> and <code>text</code>? And when should each be used?</p> | 3,354,452 | 9 | 0 | null | 2010-07-28 15:15:33.407 UTC | 99 | 2020-10-22 04:59:03.333 UTC | 2012-01-13 23:06:17.033 UTC | null | 71,421 | null | 218,183 | null | 1 | 475 | ruby-on-rails | 215,392 | <p>The difference relies in how the symbol is converted into its respective column type in query language.</p>
<blockquote>
<p>with MySQL :string is mapped to VARCHAR(255)</p>
<ul>
<li><a href="https://edgeguides.rubyonrails.org/active_record_migrations.html" rel="noreferrer">https://edgeguides.rubyonrails.org/active_r... |
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