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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
28,504,589 | Creating an NSDateFormatter in Swift? | <p>I am new to swift and am very unfamiliar with Objective-C. Could someone help me convert this to Swift? I got this code from Ray Wenderlich's best iOS practices - <a href="http://www.raywenderlich.com/31166/25-ios-app-performance-tips-tricks" rel="noreferrer">http://www.raywenderlich.com/31166/25-ios-app-performance... | 28,511,412 | 4 | 2 | null | 2015-02-13 16:49:06.117 UTC | 9 | 2020-05-10 17:46:16.023 UTC | 2017-06-20 17:32:55.097 UTC | null | 74,118 | null | 4,162,864 | null | 1 | 24 | objective-c|swift|date|nsdate|nsdateformatter | 14,013 | <ol>
<li><p>If you're really looking for direct analog to the method in your question, you could do something like:</p>
<pre><code>class MyObject {
// define static variable
private static let formatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "EEE MMM dd HH:m... |
36,285,253 | Enable CORS for Web Api 2 and OWIN token authentication | <p>I have an ASP.NET MVC 5 webproject (localhost:81) that calls functions from my WebApi 2 project (localhost:82) using Knockoutjs, to make the communication between the two projects I enable CORS. Everything works so far until I tried to implement OWIN token authentication to the WebApi.</p>
<p>To use the /token endp... | 36,968,863 | 3 | 9 | null | 2016-03-29 13:09:22.34 UTC | 16 | 2021-02-25 20:58:26.05 UTC | 2021-02-25 20:58:26.05 UTC | null | 1,075,980 | null | 4,836,952 | null | 1 | 33 | asp.net-web-api|asp.net-mvc-5|cors|asp.net-web-api2|owin | 31,374 | <p>I know your issue was solved inside comments, but I believe is important to understand what was causing it and how to resolve this entire class of problems.</p>
<p>Looking at your code I can see you are setting the <code>Access-Control-Allow-Origin</code> header more than once for the Token endpoint:</p>
<pre><cod... |
36,608,780 | og:image could not be downloaded because it exceeded the maximum allowed sized of 8Mb | <p>Building a website that requires sharing links with an image. Done this I don't know how often...but this time the Facebook Open Graph Debugger says:</p>
<p>og:image {image url} could not be downloaded because it exceeded the maximum allowed sized of 8Mb</p>
<p>But the image referenced is only 108KB? One other tim... | 36,894,300 | 4 | 10 | null | 2016-04-13 20:18:23.373 UTC | 8 | 2018-01-29 22:58:10.67 UTC | 2016-08-06 01:32:05.143 UTC | null | 212,378 | null | 5,036,871 | null | 1 | 49 | facebook-opengraph | 23,131 | <p>This is a bug, and it's confirmed, after getting the warning, if you retry the debug, or click on "Scrape Again", the error message will be gone. This is an issue because if someone tries to share the post, the image will not show up since it didn't get scrapped, but subsequent shares will display the image.</p>
<p... |
7,055,652 | Real-world example of exponential time complexity | <p>I'm looking for an intuitive, real-world example of a problem that takes (worst case) exponential time complexity to solve for a talk I am giving.</p>
<p>Here are examples for other time complexities I have come up with (many of them taken from <a href="https://stackoverflow.com/questions/1592649/examples-of-algori... | 7,055,684 | 5 | 3 | null | 2011-08-14 07:45:54.84 UTC | 21 | 2020-06-23 18:19:57.3 UTC | 2017-05-23 12:02:56.8 UTC | null | -1 | null | 393,304 | null | 1 | 38 | complexity-theory|exponential | 35,918 | <ul>
<li>O(10^N): trying to break a password by testing every possible combination (assuming numerical password of length N)</li>
</ul>
<p><strike><strong>p.s.</strong> why is your last example is of complexity O(infinity) ? it's linear search O(N) .. there are less than 7 billion people in the world.</strike></p> |
7,059,780 | Find the element repeated more than n/2 times | <p>There is an array (of size N) with an element repeated more than N/2 number of time and the <strong>rest of the element in the array can also be repeated</strong> but only one element is repeated more than N/2 times. Find the number.</p>
<p>I could think of few approaches:</p>
<ul>
<li>Naive, keep the count of eac... | 7,059,877 | 7 | 3 | null | 2011-08-14 21:16:56.903 UTC | 26 | 2015-10-07 05:33:06.373 UTC | 2011-12-15 20:57:31.477 UTC | null | 501,557 | null | 854,075 | null | 1 | 31 | arrays|algorithm | 31,088 | <p>There is a beautiful algorithm for solving this that works in two passes (total time O(N)) using only constant external space (O(1)). I have an implementation of this algorithm, along with comments including a correctness proof, <strong><a href="http://keithschwarz.com/interesting/code/?dir=majority-element" rel="n... |
7,070,011 | Writing large number of records (bulk insert) to Access in .NET/C# | <p>What is the best way to perform bulk inserts into an MS Access database from .NET? Using ADO.NET, it is taking way over an hour to write out a large dataset.</p>
<p><em>Note that my original post, before I "refactored" it, had both the question and answer in the question part. I took Igor Turman's suggestion and ... | 7,080,644 | 8 | 6 | null | 2011-08-15 19:55:31.633 UTC | 27 | 2018-12-21 08:37:51.203 UTC | 2011-08-16 15:22:21.067 UTC | null | 1,955,013 | null | 1,955,013 | null | 1 | 55 | c#|ms-access|dao|bulkinsert | 54,254 | <p>I found that using DAO in a specific manner is roughly 30 times faster than using ADO.NET. I am sharing the code and results in this answer. As background, in the below, the test is to write out 100 000 records of a table with 20 columns.</p>
<p>A summary of the technique and times - from best to worse:</p>
<ol>... |
7,344,978 | Verifying path equality with .Net | <p>What is the best way to compare two paths in .Net to figure out if they point to the same file or directory?</p>
<ol>
<li><p>How would one verify that these are the same:</p>
<pre><code>c:\Some Dir\SOME FILE.XXX
C:\\\SOME DIR\some file.xxx
</code></pre></li>
<li><p>Even better: is there a way to verify that these ... | 7,345,023 | 9 | 4 | null | 2011-09-08 08:07:48.147 UTC | 4 | 2021-04-09 02:05:28.21 UTC | 2011-09-12 10:43:17.843 UTC | user610650 | null | user610650 | null | null | 1 | 46 | c#|.net|path | 24,393 | <pre><code>var path1 = Path.GetFullPath(@"c:\Some Dir\SOME FILE.XXX");
var path2 = Path.GetFullPath(@"C:\\\SOME DIR\subdir\..\some file.xxx");
// outputs true
Console.WriteLine("{0} == {1} ? {2}", path1, path2, string.Equals(path1, path2, StringComparison.OrdinalIgnoreCase));
</code></pre>
<p>Ignoring case is only a ... |
14,210,454 | How to set two custom actionbar button in left and right in android? | <p>I am Using Sherlock library and i also implement with myself. My problem is that i added two items in menu, now i want 1 item in left of actionbar and second in right of actionbar. How to to it?</p> | 14,211,619 | 2 | 2 | null | 2013-01-08 07:51:41.36 UTC | 10 | 2018-05-28 21:04:02.343 UTC | null | null | null | null | 1,531,657 | null | 1 | 15 | android | 35,357 | <p>You can create such action bar, but it's little more complicated than inflating a menu. Menu created in <code>onCreateOptionsMenu()</code> method will be always aligned to right, placed in split action bar or hidden under the menu key. </p>
<p>If you want your action bar to contain just two menu items - one on the ... |
14,075,465 | Copy a file with a too long path to another directory in Python | <p>I am trying to copy files on Windows with Python 2.7, but sometimes this fails.</p>
<pre><code>shutil.copyfile(copy_file, dest_file)
</code></pre>
<p>I get the following IOError:</p>
<pre><code>[Errno 2] No such file or directory
</code></pre>
<p>But the file does exist! The problem is that the path of the file ... | 14,076,169 | 3 | 1 | null | 2012-12-28 20:35:59.057 UTC | 9 | 2014-01-16 16:58:12.12 UTC | null | null | null | null | 654,160 | null | 1 | 19 | python|copy | 20,205 | <p>I wasn't sure about the 255 char limit so I stumbled on <a href="https://stackoverflow.com/questions/1857335/is-there-any-length-limits-of-file-path-in-ntfs#1857477">this post</a>. There I found a working answer: adding \\?\ before the path.</p>
<pre><code>shutil.copyfile("\\\\?\\" + copy_file, dest_file)
</code></... |
14,249,467 | os.Mkdir and os.MkdirAll permissions | <p>I'm trying to create a log file at the start of my program.</p>
<p>I need to check if a <code>/log</code> directory exists if it doesn't create the directory then move on to creating the log file.</p>
<p>Well I tried to use <code>os.Mkdir</code> (as well as <code>os.MkdirAll</code>), but no matter what value I put i... | 31,151,508 | 5 | 0 | null | 2013-01-10 01:33:50.06 UTC | 37 | 2021-07-17 09:15:23.893 UTC | 2021-07-17 09:15:23.893 UTC | user16442705 | null | null | 563,335 | null | 1 | 95 | linux|go | 80,809 | <p>You can use octal notation directly:</p>
<pre><code>os.Mkdir("dirname", 0700)
</code></pre>
<p><br>
<strong>Permission Bits</strong></p>
<pre><code>+-----+---+--------------------------+
| rwx | 7 | Read, write and execute |
| rw- | 6 | Read, write |
| r-x | 5 | Read, and execute |
| r-- | 4 ... |
43,384,804 | How to validate that at least one checkbox should be selected? | <p>I want to do validation for checkboxes here without form tag. <strong>At least one checkbox should be selected.</strong></p>
<pre class="lang-xml prettyprint-override"><code><div *ngFor="let item of officeLIST">
<div *ngIf=" item.officeID == 1">
<input #off type="checkbox" id="off" name="off" v... | 43,386,577 | 7 | 2 | null | 2017-04-13 06:16:31.893 UTC | 15 | 2021-10-21 17:37:56.77 UTC | 2019-01-22 01:35:28.5 UTC | null | 430,885 | null | 3,431,310 | null | 1 | 33 | forms|angular|validation|typescript | 61,760 | <p>consider creating a <code>FormGroup</code> which contains your check-box group and bind the group's checked value to a hidden formcontrol with a required validator.</p>
<p>Assume that you have three check boxes</p>
<pre><code>items = [
{key: 'item1', text: 'value1'}, // checkbox1 (label: value1)
{key: 'it... |
9,353,414 | Rounding Down to nearest whole number - am I cheating or is this more than adequate? | <p>Essentially, if the number generated is 2.3 then if I subtract .5 it will then be 1.8 but the rounding function will make it 2, which is what I want. Or if the answer is 2.99999 and I subtract .5, the answer is 2.49999 which should round down to 2 which is what I want. My question is if the answer is 2 even and I su... | 9,353,682 | 3 | 1 | null | 2012-02-19 21:28:35.963 UTC | 3 | 2020-12-28 01:21:44.577 UTC | 2020-12-28 01:21:44.577 UTC | null | 1,783,163 | null | 1,108,852 | null | 1 | 15 | java | 70,233 | <p>Even simpler and potential faster</p>
<pre><code>double d = 2.99999999;
long l = (long) d; // truncate to a whole number.
</code></pre>
<p>This will round towards 0. Math.floor() rounds towards negative infinity. Math.round(x - 0.5) also rounds towards negative infinity.</p> |
9,226,323 | Mocking a class vs. mocking its interface | <p>For a unit test, I need to mock several dependencies. One of the dependencies is a class which implements an interface:</p>
<pre><code>public class DataAccessImpl implements DataAccess {
...
}
</code></pre>
<p>I need to set up a mock object of this class which returns some specified values when provided with s... | 9,226,437 | 5 | 1 | null | 2012-02-10 10:30:56.723 UTC | 11 | 2018-04-05 06:24:08.367 UTC | 2014-05-26 11:22:05.053 UTC | null | 145,287 | null | 1,178,669 | null | 1 | 53 | java|unit-testing|junit|mocking | 74,301 | <p>It may not make much difference in your case but the preferred approach is to mock interface, as normally if you follow TDD (Test Driven Development) then you could write your unit tests even before you write your implementation classes. Thus even if you did not have concrete class <code>DataAccessImpl</code>, you c... |
1,068,158 | Put a button on top of a google map | <p>I would like to put a button on top of a Google Map next to the Map, Satelite and Hybrid buttons.</p>
<p>I was wondering if its possible and how would be the best way to do it?</p>
<p>So ideas I have are overlaying a image on top of the google map that is clickable but not sure if that will take all the events awa... | 1,068,388 | 5 | 0 | null | 2009-07-01 09:21:14.277 UTC | 2 | 2017-07-12 15:18:03.683 UTC | 2017-07-12 15:18:03.683 UTC | null | 1,000,551 | null | 66,319 | null | 1 | 13 | google-maps|button|overlay | 49,977 | <p>There is a pretty good description of how to do this <a href="http://code.google.com/apis/maps/documentation/controls.html#Custom_Controls" rel="nofollow noreferrer">here</a>.</p>
<p>I am pretty sure you can style these guys to look like the standard buttons and you can definitely anchor it to the top right. When ... |
639,886 | Exporting from SQL Server to Excel with column headers? | <p>I have a query that has approximately 20 columns and I would like to export this to an Excel file with the column headers. </p>
<p>I thought this would be easy to figure out but no luck! I searched the web and found one suggestion that did not end up working so I am stuck.</p> | 640,619 | 5 | 2 | null | 2009-03-12 18:25:20.627 UTC | 3 | 2022-07-21 17:15:25.937 UTC | 2017-10-27 16:16:32.323 UTC | null | 2,144,085 | Mark K. | 16,642 | null | 1 | 14 | sql-server|excel|sql-server-2005|export | 75,255 | <p>I typically do this by simply click the upper left corner in the results grid, copy, and then paste into Excel. There is one catch, you need to go into options->query results-> SQL Server->results to grid (or text if you want to save to file for import into excel) and turn on include column headers when copying or ... |
1,154,331 | SQLAlchemy and django, is it production ready? | <p>Has anyone used <code>SQLAlchemy</code> in addition to <code>Django</code>'s ORM?</p>
<p>I'd like to use Django's ORM for object manipulation and SQLalchemy for complex queries (like those that require left outer joins). </p>
<p>Is it possible?</p>
<p>Note: I'm aware about <code>django-sqlalchemy</code> but the p... | 1,155,407 | 5 | 0 | null | 2009-07-20 15:44:44.8 UTC | 12 | 2022-07-11 06:20:50.41 UTC | 2013-09-05 20:09:57.45 UTC | null | 1,628,832 | null | 80,869 | null | 1 | 24 | python|database|django|sqlalchemy | 12,706 | <p>What I would do,</p>
<ol>
<li><p>Define the schema in Django orm, let it write the db via syncdb. You get the admin interface.</p></li>
<li><p>In view1 you need a complex join</p></li>
</ol>
<pre>
<code>
def view1(request):
import sqlalchemy
data = sqlalchemy.complex_join_magic(...)
...
... |
134,791 | Why pool Stateless session beans? | <p>Stateless beans in Java do not keep their state between two calls from the client. So in a nutshell we might consider them as objects with business methods. Each method takes parameters and return results. When the method is invoked some local variables are being created in execution stack. When the method returns t... | 135,037 | 5 | 0 | 2008-09-25 17:43:30.05 UTC | 2008-09-25 17:43:30.05 UTC | 11 | 2018-03-30 13:23:20.697 UTC | null | null | null | null | 3,980 | null | 1 | 28 | java|ejb|pooling|stateless-session-bean | 15,332 | <p>Pooling does several things.</p>
<p>One, by having one bean per instance, you're guaranteed to be threads safe (Servlets, for example, are not thread safe).</p>
<p>Two, you reduce any potential startup time that a bean might have. While Session Beans are "stateless", they only need to be stateless with regards to ... |
157,603 | Getting specific revision via http with VisualSVN Server | <p>I'm using VisualSVN Server to host an SVN repo, and for some automation work, I'd like to be able to get specific versions via the http[s] layer.</p>
<p>I can get the HEAD version simply via an http[s] request to the server (httpd?) - but is there any ability to specify the revision, perhaps as a query-string? I ca... | 3,084,830 | 5 | 0 | null | 2008-10-01 13:29:00.29 UTC | 12 | 2019-02-22 11:54:47.747 UTC | 2012-07-19 12:48:33.887 UTC | null | 761,095 | Marc Gravell | 23,354 | null | 1 | 33 | svn|http|version-control|visualsvn|visualsvn-server | 14,875 | <p>Better late than never;
<a href="https://entire/Path/To/Folder/file/?p=REV" rel="noreferrer">https://entire/Path/To/Folder/file/?p=REV</a></p>
<p>?p=Rev specifies the revision</p> |
30,914,964 | How to update multiple tables with single query | <p>I have 2 tables that I need to update:</p>
<p>Table A consists of: ID, personName, Date, status</p>
<p>Table B consist of: PersonID, Date, status</p>
<p>For every row in A there can be multiple rows in B with the same personID</p>
<p>I need to "loop" over all results from A that the status=2 and update the date ... | 30,915,208 | 3 | 2 | null | 2015-06-18 12:08:36.817 UTC | 2 | 2015-06-18 14:23:23.56 UTC | null | null | null | null | 606,645 | null | 1 | 6 | sql|sql-server | 46,496 | <p>Here is an example using the <code>output</code> clause:</p>
<pre><code>declare @ids table (id int);
update table1
set status = 1
output inserted.id into @ids
where status = 2;
update table2
set status = 1,
date = getdate()
where personid in (select id from @ids);
</code></pre> |
30,867,937 | Redundant conformance error message Swift 2 | <p>I updated my project to Swift 2, and received a bunch of <code>redundant conformance of XXX to protocol YYY</code>. This happens especially often (or always) when a class conforms to <code>CustomStringConvertible</code>. Also some place with <code>Equatable</code>.</p>
<pre><code>class GraphFeatureNumbersetRange: G... | 30,868,779 | 3 | 3 | null | 2015-06-16 12:43:49.027 UTC | 2 | 2018-06-02 13:06:19.987 UTC | 2015-06-16 13:40:59.407 UTC | null | 1,187,415 | null | 1,572,953 | null | 1 | 52 | xcode|swift | 46,912 | <p>You'll get that error message in Xcode 7 (Swift 2) if a subclass declares conformance
to a protocol which is already inherited from a superclass. Example:</p>
<pre><code>class MyClass : CustomStringConvertible {
var description: String { return "MyClass" }
}
class Subclass : MyClass, CustomStringConvertible {
... |
21,217,710 | Factor Loadings using sklearn | <p>I want the correlations between individual variables and principal components in python.
I am using PCA in sklearn. I don't understand how can I achieve the loading matrix after I have decomposed my data? My code is here.</p>
<pre><code>iris = load_iris()
data, y = iris.data, iris.target
pca = PCA(n_components=2)
t... | 44,728,692 | 3 | 4 | null | 2014-01-19 14:03:00.593 UTC | 12 | 2018-06-12 15:52:31.303 UTC | 2014-01-20 07:10:38.997 UTC | null | 1,286,398 | null | 1,286,398 | null | 1 | 29 | python|scikit-learn|pca | 32,692 | <p>I think that @RickardSjogren is describing the eigenvectors, while @BigPanda is giving the loadings. There's a big difference: <a href="https://stats.stackexchange.com/questions/143905/loadings-vs-eigenvectors-in-pca-when-to-use-one-or-another">Loadings vs eigenvectors in PCA: when to use one or another?</a>.</p>
... |
21,381,641 | iOS, unrecognized selector sent to instance? | <p>I got a mainscreen with a imported custom actionBar. I created this actionBar in a separate .xib file, with a .m and .h file. </p>
<p>I do some graphic setup in my actionBar.m's <code>viewDidLoad</code> like <code>backgroundColor</code> and some other stuff. </p>
<p>I also got a button on this <code>actionBar</cod... | 21,381,758 | 1 | 7 | null | 2014-01-27 13:02:54.857 UTC | null | 2014-01-27 13:28:52.197 UTC | 2014-01-27 13:28:52.197 UTC | null | 1,497,737 | null | 2,408,952 | null | 1 | 6 | ios|iphone|xib|ibaction | 41,590 | <p>You are releasing the <code>actionBar</code> instance and just retaining its <code>view</code>. If <code>actionBar</code> instance is responder to button action, then button click message is getting sent to deleted instance. You should retain the <code>actionBar</code> instance. One way to do this is making it an iv... |
18,215,899 | Get type of generic parameter | <p>I wrote small function for better handling with types.</p>
<pre><code>function evaluate(variable: any, type: string): any {
switch (type)
{
case 'string': return String(variable);
case 'number': return isNumber(variable) ? Number(variable) : -1;
case 'boolean': {
if (type... | 18,216,538 | 2 | 3 | null | 2013-08-13 17:50:42.35 UTC | 6 | 2020-07-06 06:15:12.543 UTC | null | null | null | null | 2,438,165 | null | 1 | 21 | generics|types|typescript | 53,988 | <p><code>typeof</code> is a JavaScript operator. It can be used at run time to get the types JavaScript knows about. Generics are a TypeScript concept that helps check the correctness of your code but doesn't exist in the compiled output. So the short answer is no, it's not possible.</p>
<p>But you could do somethin... |
17,838,221 | JEE7: Do EJB and CDI beans support container-managed transactions? | <p>Java EE7 consists of a bunch of "bean" definitions:</p>
<ul>
<li>Managed Beans 1.0 (JSR-316 / JSR-250)</li>
<li>Dependency Injection for Java 1.0 (JSR-330)</li>
<li>CDI 1.1 (JSR-346)</li>
<li>JSF Managed Beans 2.2 (JSR-344)</li>
<li>EJB 3.2 (JSR-345)</li>
</ul>
<p>In order to get rid of the chaos in my mind, I stu... | 17,842,796 | 2 | 1 | null | 2013-07-24 15:18:01.17 UTC | 14 | 2016-02-25 21:10:16.783 UTC | 2017-05-23 12:01:29.92 UTC | null | -1 | null | 1,399,395 | null | 1 | 20 | java|jakarta-ee|ejb|cdi|jta | 21,502 | <p>Until Java EE 7 only EJB was transactional and the <code>@Transactional</code> annotation didn't exist.</p>
<p>Since Java EE 7 and JTA 1.2 you can use transactional interceptor in CDI with <code>@Transactional</code> annotation.</p>
<p>To answer your question about the best type of bean to use, the answer is CDI b... |
2,006,763 | What are the prerequisites to learning natural language processing? | <p>I am planning to learn natural language processing this year.</p>
<p>But when I start reading introductory books on this topic, I found that I miss a lot of points relating mainly to mathematics.</p>
<p>So I'm here searching for what I should learn before I can learn nlp, well, more smoothly?</p>
<p>Thanks in adv... | 2,006,797 | 5 | 0 | null | 2010-01-05 14:54:15.77 UTC | 24 | 2014-10-31 01:39:51.663 UTC | 2010-01-05 14:58:24.783 UTC | null | 164,901 | null | 225,262 | null | 1 | 25 | nlp | 16,187 | <p>There are two main approaches to NLP right now - one is the language-based approach detailed by Jurafsky and Martin (<a href="https://rads.stackoverflow.com/amzn/click/com/0131873210" rel="noreferrer" rel="nofollow noreferrer">Speech and Language Processing</a>) and the other is a probability and statistics-based ap... |
2,104,513 | Minify HTML output from an ASP.Net MVC Application | <p>This is likely a duplicate of the below question but the only answer is a dead link:<br>
<a href="https://stackoverflow.com/questions/255008/minify-html-output-of-asp-net-application">Minify Html output of ASP.NET Application</a></p>
<p>When working with ASP.Net one of the more annoying aspects to me is the fact th... | 2,104,573 | 5 | 1 | null | 2010-01-20 20:01:44.593 UTC | 11 | 2017-03-25 00:59:16.237 UTC | 2017-05-23 12:02:48.59 UTC | null | -1 | null | 238,395 | null | 1 | 39 | asp.net|asp.net-mvc|minify|asp.net-mvc-views | 36,922 | <p><a href="https://stackoverflow.com/questions/6992524/">Enabling GZIP</a> will have much more effect than minifying your HTML, anyway.</p>
<p>Doing minification at runtime could hurt your servers (assuming you don't use caching). It may be a good idea to minfiy your Asp.Net markup during deployment. This way, you st... |
1,830,347 | Quickest way to pass data to a popup window I created using window.open()? | <p>I have javascript code to open a popup window using the window.open() function. I'd like to pass data from the parent window to that popup window and I can't seem to find an elegant or simple solution anywhere on google or SO, but it seems like there should be support for this built into JS. What's the easiest way... | 1,830,388 | 6 | 1 | null | 2009-12-02 02:43:09.383 UTC | 8 | 2022-09-03 04:03:56.53 UTC | null | null | null | null | 191,808 | null | 1 | 29 | javascript | 42,957 | <p>Due to security restrictions it <em>is</em> super easy <em>only</em> if the parent window and the popup are from the same domain. If that is the case just use this:</p>
<pre><code>// Store the return of the `open` command in a variable
var newWindow = window.open('http://www.mydomain.com');
// Access it using its ... |
1,466,000 | Difference between modes a, a+, w, w+, and r+ in built-in open function? | <p>In the python built-in <a href="http://docs.python.org/library/functions.html#open" rel="noreferrer">open</a> function, what is the exact difference between the modes <code>w</code>, <code>a</code>, <code>w+</code>, <code>a+</code>, and <code>r+</code>?</p>
<p>In particular, the documentation implies that all of th... | 1,466,036 | 8 | 3 | null | 2009-09-23 13:27:36.45 UTC | 418 | 2022-05-25 19:19:30.93 UTC | 2020-05-20 05:47:17.2 UTC | null | 6,862,601 | null | 63,051 | null | 1 | 784 | python | 595,827 | <p>The opening modes are exactly the same as those for the C standard library function <strong><code>fopen()</code></strong>.</p>
<p><a href="http://www.manpagez.com/man/3/fopen/" rel="noreferrer">The BSD <code>fopen</code> manpage</a> defines them as follows:</p>
<pre class="lang-none prettyprint-override"><code> Th... |
1,371,351 | Add files to an Xcode project from a script? | <p>Right now I'm using a few scripts to generate files that I'm including as resources in Xcode. The thing is I'm running the script, then deleting from the project, then adding back into the project. There must be a way to automate this last step, so that the script can generate the files and automatically add them in... | 1,371,595 | 8 | 1 | null | 2009-09-03 03:51:36.363 UTC | 35 | 2021-03-19 10:00:09.483 UTC | 2014-08-27 18:01:12.913 UTC | null | 148,335 | null | 167,643 | null | 1 | 57 | xcode|scripting|project | 38,971 | <p>This can be done by adding a new build phase to your application.</p>
<ol>
<li><p>In your Xcode project browser, find the target for your application, and expand it to show all of the build phases.</p></li>
<li><p>Add a new <a href="http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/Xcod... |
2,190,625 | What is the difference between framework and architecture? | <p>I would like to know the difference between framework and architecture.<br>
for example: <code>dotnetnuke</code> is the framework and <code>mvc</code> is the architecture.</p>
<p>so if we take both of this as a example, can anyone tell me difference between them?<br>
Want to know which one is using when and where?<... | 2,191,064 | 12 | 3 | 2010-02-03 08:37:22.643 UTC | 2010-02-03 08:37:22.643 UTC | 23 | 2018-12-02 01:08:30.733 UTC | 2018-12-02 01:08:30.733 UTC | user3956566 | null | null | 200,349 | null | 1 | 34 | .net|architecture|frameworks|dotnetnuke | 35,952 | <p>Let me illustrate the difference.</p>
<p>Framework:</p>
<p><img src="https://s3.amazonaws.com/finewoodworking.s3.tauntoncloud.com/app/uploads/2016/09/05213353/Woodworking_Tools.jpg" alt="Framework"></p>
<p>Architecture:</p>
<p><img src="https://i.imgur.com/kfZysaU.png" alt="Architecture"></p> |
1,765,311 | How to view files in binary from bash? | <p>I would like to view the contents of a file in the current directory, but in binary from the command line. How can I achieve this?</p> | 20,305,782 | 13 | 0 | null | 2009-11-19 18:04:11.783 UTC | 104 | 2021-05-10 23:34:30.243 UTC | 2018-12-05 22:36:51.087 UTC | null | 211,176 | null | 211,176 | null | 1 | 354 | bash|shell|binary | 514,488 | <p><a href="https://linux.die.net/man/1/xxd" rel="noreferrer"><code>xxd</code></a> does both binary and hexadecimal.</p>
<p>bin:</p>
<pre><code>xxd -b file
</code></pre>
<p>hex:</p>
<pre><code>xxd file
</code></pre> |
2,189,452 | When to use margin vs padding in CSS | <p>When writing CSS, is there a particular rule or guideline that should be used in deciding when to use <code>margin</code> and when to use <code>padding</code>?</p> | 9,183,818 | 16 | 1 | null | 2010-02-03 03:20:12.533 UTC | 770 | 2022-09-12 15:03:15.967 UTC | 2020-02-06 14:24:49.907 UTC | null | 2,756,409 | null | 6,651 | null | 1 | 2,555 | css|padding|margin | 957,778 | <p><strong>TL;DR:</strong> <em>By default I use margin everywhere, except when I have a border or background and want to increase the space inside that visible box.</em></p>
<p>To me, the biggest difference between padding and margin is that vertical margins auto-collapse, and padding doesn't. </p>
<p>Consider two el... |
33,884,291 | Pipes, dup2 and exec() | <p>I have to write a shell that can run pipes. For example commands like <code>ls -l | wc -l</code>". I have successfully parsed the command given by the user as below:</p>
<blockquote>
<p>"ls" = firstcmd</p>
<p>"-l" = frsarg</p>
<p>"wc" = scmd</p>
<p>"-l" = secarg</p>
</blockquote>
<p>Now I have to ... | 33,884,923 | 3 | 4 | null | 2015-11-24 02:16:56.247 UTC | 9 | 2020-06-24 03:35:20.28 UTC | 2017-05-19 15:05:56.873 UTC | null | 15,168 | null | 2,964,459 | null | 1 | 12 | c|linux|shell|exec|dup2 | 69,912 | <p>You need to close all the pipe descriptors in both the parent process and the child process (after duplication in the child process). In your code the main issue is that, the <code>wc</code> process does not exit because there are still writers present (since the parent process has not closed the write end). Changes... |
18,163,213 | TypeError: abc.getAttribute is not a function | <p>For the following code:</p>
<pre><code> <span class="map-marker" data-lng="101.7113506794"></span>
<span class="map-marker" data-lng="101.6311097146"></span>
var abc = $('.map-marker:first');
var xyz = abc.getAttribute("data-lat");
console.log(xyz);
</code></pre>
<p>I get the erro... | 18,163,229 | 7 | 2 | null | 2013-08-10 15:10:08.187 UTC | 8 | 2019-09-17 09:02:11.69 UTC | 2017-07-20 10:21:57.147 UTC | null | 1,206,613 | null | 492,767 | null | 1 | 21 | javascript|jquery | 120,844 | <p>Try this may be:</p>
<pre><code>var abc = $(".map-marker:first")[0];
var xyz = abc.getAttribute("data-lat");
console.log(xyz);
</code></pre>
<p>Or this: </p>
<pre><code>var abc = $(".map-marker:first");
var xyz = abc.data("lat");
console.log(xyz);
</code></pre> |
17,754,233 | Crashlytics file not found | <p>Recently opened a project that I had compiled and submitted to Apple.</p>
<p>I haven't touched it for a couple of months but I'm getting this odd compile error at:</p>
<pre><code>#import <Crashlytics/Crashlytics.h>
</code></pre>
<p>The error reads:</p>
<pre><code>'Crashlytics/Crashlytics.h' file not found
... | 18,506,633 | 13 | 5 | null | 2013-07-19 19:41:53.843 UTC | 15 | 2022-05-24 03:51:23.08 UTC | 2014-06-02 05:23:47.063 UTC | null | 403,018 | null | 343,204 | null | 1 | 58 | xcode|crashlytics | 44,219 | <p>Just add <code>$(SRCROOT)</code> to the <strong>Framework Search Paths</strong> in Project Build Settings (Search Paths).</p>
<p>Crashlytics installation process drops its <code>Crashlytics.framework</code> to your project folder (or creates the symlink).</p>
<p>If you moved Crashlytics.framework somewhere deeper ... |
6,688,329 | In Scala Akka futures, what is the difference between map and flatMap? | <p>in normal Scala map and flatMap are different in that flatMap will return a iterable of the data flattened out into a list.
However in the Akka documentation, map and flatMap seem to do something different?</p>
<p><a href="http://akka.io/docs/akka/1.1/scala/futures.html" rel="noreferrer">http://akka.io/docs/akka/1.... | 6,689,495 | 3 | 1 | null | 2011-07-14 04:00:07.293 UTC | 16 | 2017-06-26 11:23:48.037 UTC | null | null | null | null | 78,000 | null | 1 | 39 | scala|akka | 12,660 | <p>In "normal" Scala (as you say), map and flatMap have nothing to do with Lists (check Option for example).</p>
<p>Alexey gave you the correct answer. Now, if you want to know why we need both, it allows the nice <code>for</code> syntax when composing futures. Given something like:</p>
<pre><code>val future3 = for( ... |
6,814,620 | Strange behavior using view-based NSOutline (Sourcelist) | <p>I have a (new in Lion) view-based NSOutlineView as Sidebar SourceList in my app using CoreData + NSTreeController + Bindings + NSOutlineView and an Object as NSOutlineViewDelegate.</p>
<p>I use these delegate methods in the outlineview delegate:</p>
<p><strong>- (BOOL)outlineView:(NSOutlineView *)outlineView isGro... | 7,092,369 | 4 | 1 | null | 2011-07-25 10:17:27.62 UTC | 16 | 2015-12-29 09:30:39.35 UTC | 2011-08-18 07:20:49.4 UTC | null | 449,424 | null | 449,424 | null | 1 | 18 | cocoa|nsoutlineview | 4,417 | <p>Setting <strong>setFloatsGroupRows:NO</strong> for the outline view must solve the issue with first group item moving up-down when being expanded/collapsed.</p> |
6,532,400 | Linking files in g++ | <p>Recently I have tried to compile a program in g++ (on Ubuntu). Usually i use Dev-C++ (on Windows) and it works fine there as long as I make a project and put all the necessary files in there. </p>
<p>The error that occurs when compiling the program is:</p>
<pre><code>$filename.cpp: undefined reference to '[Class]:... | 6,532,492 | 4 | 2 | null | 2011-06-30 09:00:32.303 UTC | 12 | 2019-05-04 07:54:15.997 UTC | null | null | null | null | 784,079 | null | 1 | 24 | c++|g++|compiler-errors|linker-errors | 89,364 | <p>You probably tried to either compile and link instead of just compiling source files or somehow forgot something.</p>
<p>Variation one (everything in one line; recompiles everything all the time):</p>
<pre><code>g++ -o myexecutable first.cpp second.cpp third.cpp [other dependencies, e.g. -Lboost, -LGL, -LSDL, etc.... |
23,802,115 | Is LIMIT clause in HIVE really random? | <p>The <a href="https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Select" rel="noreferrer">documentation</a> of <code>HIVE</code> notes that <code>LIMIT</code> clause <code>returns rows chosen at random</code>. I have been running a <code>SELECT</code> table on a table with more than <code>800,000</code> ... | 23,802,286 | 3 | 3 | null | 2014-05-22 08:55:44.15 UTC | 4 | 2018-02-22 00:31:52.26 UTC | 2014-05-22 11:37:48 UTC | null | 354,577 | null | 295,338 | null | 1 | 15 | sql|hive|hiveql|shark-sql | 59,462 | <p>Even though the documentation states it returns rows at random, it's not actually true. </p>
<p>It returns "chosen rows at random" as it appears in the database without any where/order by clause. This means that it's not really random (or randomly chosen) as you would think, just that the order the rows are returne... |
15,714,342 | Iterating through PostgreSQL records. How to reference data from next row? | <p>I'm new to PostgreSQL and writing functions here is tough as nails. So I'm hoping someone can help let me know how to do what I'm trying to do.</p>
<p>I have a table of stock prices and dates. I want to calculate the percent change from the previous day for each entry. For the earliest day of data, there won't be a... | 15,716,499 | 2 | 0 | null | 2013-03-30 02:40:47.333 UTC | 4 | 2013-03-30 08:29:23.437 UTC | 2013-03-30 08:23:45.007 UTC | null | 939,860 | null | 1,455,043 | null | 1 | 8 | sql|postgresql|plpgsql|window-functions | 43,494 | <blockquote>
<p>I want to calculate the percent change from the previous day for each
entry.</p>
</blockquote>
<p>Generally you need to <strong>study the basics</strong>, before you start asking questions.<br>
Read the excellent manual about <a href="http://www.postgresql.org/docs/current/interactive/sql-createfun... |
27,726,779 | Declare Maven dependency as test runtime only | <p>What is the best way to declare a Maven dependency as only being used for the test runtime (but not test compilation) class path?</p>
<p>Specifically, I want <code>slf4j-api</code> (a logging facade) as a typical, compile-scope dependency, but I want <code>slf4j-simple</code> (the barebones implementation suitable ... | 27,729,783 | 4 | 4 | null | 2014-12-31 22:11:54.917 UTC | 6 | 2021-06-17 06:16:04.48 UTC | null | null | null | null | 123,336 | null | 1 | 33 | java|maven|maven-3|maven-dependency-plugin | 13,447 | <p>There is no scope that does exactly what you want here; <code>test</code> is the best available option.</p>
<p>A <code>test-runtime</code> scope has been requested before (<a href="https://mail-archives.apache.org/mod_mbox/maven-users/200811.mbox/%3C17608340.3674701226307519843.JavaMail.adm-moff@moffice8.nsc.no%3E"... |
5,459,708 | Measuring the UITableView Scrolling Performance - iphone | <p>I am trying to measure the scrolling performance for my UITableView, between using subview and drawing the view myself. As we may know about scrolling performance, there are a couple of famous articles (<a href="http://blog.atebits.com/2008/12/fast-scrolling-in-tweetie-with-uitableview/" rel="noreferrer">Tweetie</a>... | 5,459,796 | 2 | 1 | null | 2011-03-28 13:30:59.47 UTC | 9 | 2012-10-10 15:10:09.283 UTC | 2011-03-28 14:01:03.76 UTC | null | 227,698 | null | 227,698 | null | 1 | 11 | iphone|objective-c|performance|uitableview|scroll | 3,949 | <p>I'd suggest using Instruments rather than trying to run the test directly in your code. The Core Animation tool will track the actual number of frames per second (FPS) that your app’s displaying.</p> |
5,578,535 | Get Cell Value from Excel Sheet with Apache Poi | <p>How to get cell value with poi in java ?</p>
<p>My code is look like this </p>
<pre><code>String cellformula_total__percentage= "(1-E" + (rowIndex + 2) + "/" + "D" + (rowIndex + 2) + ")*100";
cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
cell.setCellStyle(this.valueRightAlignStyleLightBlueBackground);
cell.setCell... | 5,578,666 | 2 | 0 | null | 2011-04-07 09:01:29.703 UTC | 11 | 2011-09-20 15:26:17.28 UTC | 2011-09-20 15:26:17.28 UTC | null | 701,884 | null | 492,185 | null | 1 | 20 | java|apache-poi | 176,552 | <p>You have to use the FormulaEvaluator, as shown <a href="http://poi.apache.org/spreadsheet/eval.html">here</a>. This will return a value that is either the value present in the cell or the result of the formula if the cell contains such a formula :</p>
<pre><code>FileInputStream fis = new FileInputStream("/somepath/... |
5,331,452 | HTTP Accept Header meaning | <p>When a browser's Accept request header says something like the following:</p>
<pre><code>Accept: application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
</code></pre>
<p>Does that mean that <code>application/xml</code>, <code>application/xhtml+xml</code>, and <code>text/html</cod... | 5,331,486 | 2 | 0 | null | 2011-03-16 20:40:06.957 UTC | 9 | 2015-08-18 01:15:02.143 UTC | 2013-11-12 14:14:49.403 UTC | null | 428,241 | null | 43,217 | null | 1 | 44 | http|http-headers|mime-types|content-negotiation | 46,512 | <p>No, if the <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1">quality parameter</a> is missing <code>q=1.0</code> is assumed:</p>
<blockquote>
<p>Each media-range MAY be followed by one or more accept-params, beginning with the "q" parameter for indicating a relative quality factor […] using... |
5,401,358 | What's the difference between jaxws-ri and jaxws-rt? | <p>See the JAX-WS Maven repository from <em>java.net</em> - <a href="http://download.java.net/maven/2/com/sun/xml/ws/" rel="noreferrer">http://download.java.net/maven/2/com/sun/xml/ws/</a></p>
<p>There are two similar folders - <strong>jaxws-rt</strong> and <strong>jaxws-ri</strong>. Currently, I'm using the <strong>j... | 15,149,814 | 2 | 0 | null | 2011-03-23 05:54:32.013 UTC | 10 | 2019-04-06 14:18:10.803 UTC | 2013-06-06 15:06:43.063 UTC | null | 814,702 | null | 483,819 | null | 1 | 53 | java|web-services|jax-ws | 32,129 | <p>As an answer to your <strong>second question</strong>: Yes, you are right.</p>
<p>Below is the proof.</p>
<hr>
<p><strong>RI</strong> stands for <em>Reference Implementation</em>.</p>
<p>Quote from the official <a href="http://jax-ws.java.net/" rel="noreferrer"><strong>JAX-WS project home page</strong></a> (an ... |
16,361,535 | Webdriver findElements By xpath | <p>1)I am doing a tutorial to show how findElements By xpath works. I would like to know why it returns all the texts that following the <code><div></code> element with attribute <code>id=container</code>.</p>
<p>code for xpath: <code>By.xpath("//div[@id='container']</code> </p>
<p>2) how should I modify the co... | 16,362,800 | 3 | 0 | null | 2013-05-03 14:39:52.007 UTC | 4 | 2015-09-16 13:15:07.54 UTC | 2015-09-16 13:15:07.54 UTC | null | 487,494 | null | 2,061,466 | null | 1 | 7 | java|selenium|xpath|selenium-webdriver|webdriver | 102,057 | <p>Your questions:</p>
<p><strong>Q 1.) I would like to know why it returns all the texts that following the div?</strong><br>
It should not and I think in will not. It returns all div with 'id' attribute value equal 'containter' (and all children of this). But you are printing the results with <code>ele.getText()</c... |
16,493,280 | Close Bootstrap Modal | <p>I have a bootstrap modal dialog box that I want to show initially, then when the user clicks on the page, it disappears. I have the following:</p>
<pre><code>$(function () {
$('#modal').modal(toggle)
});
<div class="modal" id='modal'>
<div class="modal-header">
<button type="button"... | 16,493,402 | 30 | 2 | null | 2013-05-11 02:49:23.84 UTC | 58 | 2022-07-08 17:29:40.5 UTC | 2016-03-03 07:08:15.983 UTC | null | 2,202,702 | null | 903,143 | null | 1 | 521 | jquery|twitter-bootstrap|modal-dialog | 1,465,297 | <p>Put <code>modal('toggle')</code> instead of <code>modal(toggle)</code></p>
<pre><code>$(function () {
$('#modal').modal('toggle');
});
</code></pre> |
319,594 | Calculate a color fade | <p>Given two colors and <em>n</em> steps, how can one calculate n colors including the two given colors that create a fade effect? </p>
<p>If possible pseudo-code is preferred but this will probably be implemented in Java.</p>
<p>Thanks!</p> | 319,604 | 7 | 0 | null | 2008-11-26 02:38:59.577 UTC | 11 | 2015-07-13 05:38:56.26 UTC | null | null | null | Trentula | 868 | null | 1 | 12 | colors|fade | 17,344 | <p>Divide each colour into its RGB components and then calculate the individual steps required.</p>
<pre><code>oldRed = 120;
newRed = 200;
steps = 10;
redStepAmount = (newRed - oldRed) / steps;
currentRed = oldRed;
for (i = 0; i < steps; i++) {
currentRed += redStepAmount;
}
</code></pre>
<p>Obviously extend t... |
448,126 | lambda functions in bash | <p>Is there a way to implement/use lambda functions in bash? I'm thinking of something like:</p>
<pre><code>$ someCommand | xargs -L1 (lambda function)
</code></pre> | 448,166 | 7 | 0 | null | 2009-01-15 19:30:37.257 UTC | 8 | 2020-10-11 22:04:40.74 UTC | 2009-07-09 01:08:19.263 UTC | null | 68,587 | Daniel | 38,967 | null | 1 | 30 | bash|lambda | 16,630 | <p>I don't know of a way to do this, however you may be able to accomplish what you're trying to do using:</p>
<pre><code>somecommand | while read -r; do echo "Something with $REPLY"; done
</code></pre>
<p>This will also be faster, as you won't be creating a new process for each line of text.</p>
<p><strong>[EDIT 20... |
1,089,504 | OO Software Design Principles | <p>I am a huge fan of software design principles such as <strong>SOLID</strong> and <strong>DRY</strong>. What other principles exist for OO software design? </p>
<p>Note. I’m not looking for answers like "comment your code" but instead looking for OO design principles like the ones discussed by <a href="http://butunc... | 1,089,551 | 8 | 7 | 2009-08-05 00:22:38.737 UTC | 2009-07-06 22:29:10.173 UTC | 14 | 2017-07-29 13:39:37.313 UTC | 2009-07-06 22:35:55.713 UTC | null | 101,361 | null | 113,535 | null | 1 | 4 | oop|principles|design-principles | 3,273 | <p>A fairly comprehensive list from Wikipedia:</p>
<p><a href="http://en.wikipedia.org/wiki/List_of_software_development_philosophies" rel="noreferrer">http://en.wikipedia.org/wiki/List_of_software_development_philosophies</a></p>
<ul>
<li>Agile software development</li>
<li>Agile Unified Process (AUP) </li>
<li>Beha... |
667,147 | Hacking and exploiting - How do you deal with any security holes you find? | <p>Today online security is a very important factor. Many businesses are completely based online, and there is tons of sensitive data available to check out only by using your web browser. </p>
<p>Seeking knowledge to secure my own applications I've found that I'm often testing others applications for exploits and sec... | 673,377 | 8 | 3 | null | 2009-03-20 17:28:17.617 UTC | 20 | 2014-08-17 21:04:44.747 UTC | 2014-08-17 21:04:44.747 UTC | Wouter van Nifterick | 2,246,344 | ChrisAD | 39,268 | null | 1 | 26 | security|exploit | 3,846 | <p>"Ive found that Im often testing others applications for exploits and security holes, maybe just for curiosity". </p>
<p>In the UK, we have the "Computer Misuse Act". Now if these applications you're proverbially "looking at" are say Internet based and the ISP's concerned can be bothered to investigate (for purely ... |
295,628 | SecureRandom: init once or every time it is needed? | <p>Our team is using a SecureRandom to generate a list of key pairs (the SecureRandom is passed to a KeyPairGenerator). We cannot agree on which of the following two options to use:</p>
<ol>
<li><p>Create a new instance every time we need to generate a key pair</p></li>
<li><p>Initialize a static instance and use it ... | 295,652 | 8 | 0 | null | 2008-11-17 14:03:32.49 UTC | 9 | 2021-10-15 17:06:46.333 UTC | 2008-11-18 08:25:16.37 UTC | null | 23,109 | null | 23,109 | null | 1 | 32 | java|security|random|cryptography | 14,935 | <p>Unlike the <code>java.util.Random</code> class, the <code>java.security.SecureRandom</code> class must produce non-deterministic output on each call.</p>
<p>What that means is, in case of <code>java.util.Random</code>, if you were to recreate an instance with the same seed each time you needed a new random number, ... |
434,641 | How do I set permissions (attributes) on a file in a ZIP file using Python's zipfile module? | <p>When I extract files from a ZIP file created with the Python <a href="http://docs.python.org/library/zipfile.html" rel="noreferrer"><code>zipfile</code></a> module, all the files are not writable, read only etc.</p>
<p>The file is being created and extracted under Linux and Python 2.5.2.</p>
<p>As best I can tell,... | 434,689 | 8 | 0 | null | 2009-01-12 06:51:27.26 UTC | 6 | 2022-05-01 12:31:45.827 UTC | 2022-05-01 12:31:45.827 UTC | null | 1,839,439 | Tom | 3,715 | null | 1 | 46 | python|attributes|zip|file-permissions|python-zipfile | 31,130 | <p>This seems to work (thanks Evan, putting it here so the line is in context):</p>
<pre><code>buffer = "path/filename.zip" # zip filename to write (or file-like object)
name = "folder/data.txt" # name of file inside zip
bytes = "blah blah blah" # contents of file inside zip
zip = zipfile.ZipFile(buffer, ... |
48,320 | Best Ruby on Rails social networking framework | <p>I'm planning on creating a social networking + MP3 lecture downloading / browsing / commenting / discovery website using Ruby on Rails. Partially for fun and also as a means to learn some Ruby on Rails. I'm looking for a social networking framework that I can use as a basis for my site. I don't want to re-invent the... | 161,963 | 9 | 3 | null | 2008-09-07 11:06:48.497 UTC | 36 | 2022-05-30 15:35:15.223 UTC | 2022-05-30 15:35:15.223 UTC | null | 3,689,450 | Candidasa | 5,010 | null | 1 | 27 | ruby-on-rails|ruby|social-media | 38,487 | <p>It depends what your priorities are.</p>
<p>If you really want to learn RoR, <strong>do it all from scratch</strong>. Seriously. Roll your own. It's the best way to learn, far better than hacking through someone else's code. If you do that, sometimes you'll be learning Rails, but sometimes you'll just be learning t... |
925,221 | Can I hook into UISearchBar's Clear Button? | <p>I've got a UISearchBar in my interface and I want to customise the behaviour of the the small clear button that appears in the search bar after some text has been entered (it's a small grey circle with a cross in it, appears on the right side of the search field).</p>
<p>Basically, I want it to not only clear the t... | 3,852,512 | 9 | 2 | null | 2009-05-29 09:48:19.463 UTC | 4 | 2015-11-25 12:15:40.23 UTC | 2009-05-29 09:55:21.617 UTC | null | 76,559 | null | 76,559 | null | 1 | 37 | iphone|objective-c|uikit|uisearchbar | 51,275 | <p>The answer which was accepted is incorrect. This can be done, I just figured it out and posted it in another question:</p>
<p><a href="https://stackoverflow.com/questions/1092246/uisearchbar-clearbutton-forces-the-keyboard-to-appear/3852509#3852509">UISearchbar clearButton forces the keyboard to appear</a></p>
<p>... |
321,118 | What is the short cut in eclipse to terminate debugging/running? | <p>What is the shortcut in eclipse to terminate debugging/running? Looking under Preferences -> Keys says <kbd>Ctrl</kbd> + <kbd>F2</kbd> but it doesn't work.</p> | 321,150 | 9 | 0 | null | 2008-11-26 15:34:05.847 UTC | 6 | 2018-04-26 17:44:33.617 UTC | 2011-09-08 19:09:11.467 UTC | Vijay Dev | 321,366 | cretzel | 18,722 | null | 1 | 48 | eclipse|keyboard-shortcuts | 72,007 | <p>As said <a href="http://dev.eclipse.org/newslists/news.eclipse.newcomer/msg21758.html" rel="noreferrer">here</a>, you can add/enable the Debug command group to any perspective using<br>
<code>Window / Customize Perspective > Commands</code>.<br>
(Select the 'Debug' group)</p>
<p>Then open the Debug view in the J... |
893,295 | What are some of the most useful yet little known features in the PowerShell language | <p>A while back I was reading about multi-variable assignments in PowerShell. This lets you do things like this</p>
<pre><code>64 > $a,$b,$c,$d = "A four word string".split()
65 > $a
A
66 > $b
four
</code></pre>
<p>Or you can swap variables in a single statement</p>
<pre><code>$a,$b = $b,$a
</code></pr... | 893,321 | 11 | 2 | 2010-03-20 09:53:18.51 UTC | 2009-05-21 14:45:23.863 UTC | 29 | 2019-08-10 16:56:01.713 UTC | null | null | null | null | 45,571 | null | 1 | 26 | powershell | 3,151 | <p>The <code>$$</code> command. I often have to do repeated operations on the same file path. For instance check out a file and then open it up in VIM. The <code>$$</code> feature makes this trivial</p>
<pre><code>PS> tf edit some\really\long\file\path.cpp
PS> gvim $$
</code></pre>
<p>It's short and simple b... |
910,873 | How can I determine if a file is binary or text in c#? | <p>I need to determine in 80% if a file is binary or text, is there any way to do it even quick and dirty/ugly in c#?</p> | 910,927 | 11 | 3 | null | 2009-05-26 14:05:20.297 UTC | 21 | 2015-05-20 18:24:14.39 UTC | 2012-05-01 11:55:13.523 UTC | null | 50,776 | null | 30,729 | null | 1 | 60 | c#|text|file-io|binary | 52,192 | <p>I would probably look for an abundance of control characters which would typically be present in a binary file but rarely in an text file. Binary files tend to use 0 enough that just testing for many 0 bytes would probably be sufficient to catch most files. If you care about localization you'd need to test multi-b... |
144,261 | Memory leak detection tools | <p>Does Apple's Xcode development environment provide any tools for memory leak detection?</p>
<p>I am especially interested in tools that apply to the iPhone SDK. Currently my favourite platform for hobby programming projects</p>
<p>Documentations/tutorials for said tools would be very helpful.</p> | 144,866 | 11 | 0 | null | 2008-09-27 19:17:08.443 UTC | 15 | 2016-04-24 08:09:42.543 UTC | 2015-12-19 13:46:54.023 UTC | null | 1,659,677 | SytS | 22,502 | null | 1 | 64 | iphone|xcode|memory-management|memory-leaks | 80,337 | <p>There is one specifically called <code>Leaks</code> and like a previous poster said, the easiest way to run it is straight from Xcode: </p>
<blockquote>
<blockquote>
<p>run -> Start with Performance Tool -> Leaks</p>
</blockquote>
</blockquote>
<p>It seems very good at detecting memory leaks, and was easy ... |
446,358 | Storing a large number of images | <p>I'm thinking about developing my own PHP based gallery for storing lots of pictures, maybe in the tens of thousands.</p>
<p>At the database I'll point to the url of the image, but here's the problem: I know is impractical to have all of them sitting at the same directory in the server as it would slow access to a c... | 446,401 | 12 | 0 | null | 2009-01-15 10:57:43.097 UTC | 33 | 2011-12-27 17:50:14.36 UTC | 2009-03-24 12:22:50.143 UTC | Pete Kirkham | 1,527 | Saiyine | 38,238 | null | 1 | 52 | image|tree|filesystems | 14,630 | <p>We had a similar problem in the past. And found a nice solution:</p>
<ul>
<li>Give each image an unique guid.</li>
<li>Create a database record for each image containing the name, location, guid and possible location of sub images (thumbnails, reducedsize, etc.).</li>
<li>Use the first (one or two) characters of th... |
459,238 | When and how do you use server side JavaScript? | <p>Occasionally I search for some JavaScript help and I come upon the term "Server-side JavaScript". When would you use JavaScript server-side? And how? </p>
<p>My experiences of JavaScript have been in the browser. Is there a compiled version of JS?</p> | 459,379 | 12 | 6 | null | 2009-01-19 21:33:42.957 UTC | 24 | 2018-06-28 20:32:30.9 UTC | 2009-01-20 00:07:56.25 UTC | Peter Hilton | 2,670 | John Nolan | 1,116 | null | 1 | 81 | javascript|server-side | 79,350 | <p>There's the project <a href="https://phobos.java.net/" rel="noreferrer">Phobos</a>, which is a server side JavaScript framework.</p>
<p>Back In The Day, the Netscape web server offered server-side java script as well.</p>
<p>In both of these cases, JavaScript is used just like you'd use any language on the server.... |
310,634 | What is the "right" way to iterate through an array in Ruby? | <p>PHP, for all its warts, is pretty good on this count. There's no difference between an array and a hash (maybe I'm naive, but this seems obviously right to me), and to iterate through either you just do</p>
<pre><code>foreach (array/hash as $key => $value)
</code></pre>
<p>In Ruby there are a bunch of ways to d... | 310,638 | 12 | 2 | null | 2008-11-22 00:38:19.963 UTC | 99 | 2022-02-25 21:42:12.147 UTC | 2011-08-28 03:30:16.19 UTC | null | 38,765 | Horace Loeb | 25,068 | null | 1 | 391 | ruby|arrays|loops | 614,616 | <p>This will iterate through all the elements:</p>
<pre class="lang-rb prettyprint-override"><code>array = [1, 2, 3, 4, 5, 6]
array.each { |x| puts x }
# Output:
1
2
3
4
5
6
</code></pre>
<p>This will iterate through all the elements giving you the value and the index:</p>
<pre class="lang-rb prettyprint-override"><c... |
1,058,736 | How to create a NSString from a format string like @"xxx=%@, yyy=%@" and a NSArray of objects? | <p>Is there any way to create a new
NSString from a format string like @"xxx=%@, yyy=%@" and a NSArray of objects?</p>
<p>In the NSSTring class there are many methods like:</p>
<pre><code>- (id)initWithFormat:(NSString *)format arguments:(va_list)argList
- (id)initWithFormat:(NSString *)format locale:(id)locale argu... | 1,061,750 | 13 | 1 | null | 2009-06-29 14:46:09.507 UTC | 16 | 2017-07-15 10:04:39.883 UTC | 2009-06-29 17:42:20.51 UTC | null | 120,292 | null | 19,331 | null | 1 | 32 | objective-c|cocoa|nsstring|nsarray|string-formatting | 49,934 | <p>It is actually not hard to create a va_list from an NSArray. See Matt Gallagher's <a href="http://cocoawithlove.com/2009/05/variable-argument-lists-in-cocoa.html" rel="nofollow noreferrer">excellent article</a> on the subject.</p>
<p>Here is an NSString category to do what you want:</p>
<pre><code>@interface NSSt... |
348,040 | iPhone and OpenCV | <p>I know that <a href="http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port" rel="noreferrer">OpenCV was ported to Mac OS X</a>, however I did not find any info about a port to the iPhone.</p>
<p>I am not a Mac developer, so that I do not know whether a Mac OS X port is enough for the iPhone.</p>
<p>Does anyone ... | 12,662,359 | 13 | 0 | null | 2008-12-07 20:38:55.4 UTC | 78 | 2019-05-23 06:28:45.07 UTC | 2019-05-23 06:28:45.07 UTC | Chris Hanson | 2,272,431 | Pascal T. | 19,816 | null | 1 | 97 | ios|iphone|opencv | 71,564 | <p>OpenCV now (since <strong>2012</strong>) has an <strong>official port</strong> for the iPhone (iOS).</p>
<p>You can find <a href="http://opencv.org" rel="nofollow noreferrer">all of OpenCV's releases here.</a></p>
<p>And find install instructions here: </p>
<p><a href="https://docs.opencv.org/3.4.3/d5/da3/tutoria... |
338,206 | Why can't I use switch statement on a String? | <p>Is this functionality going to be put into a later Java version?</p>
<p>Can someone explain why I can't do this, as in, the technical way Java's <code>switch</code> statement works?</p> | 338,230 | 14 | 3 | null | 2008-12-03 18:23:57.127 UTC | 195 | 2022-09-22 02:19:10.857 UTC | 2018-07-09 21:52:21.683 UTC | Nalandial | 8,583,692 | Nalandial | 14,007 | null | 1 | 1,042 | java|string|switch-statement | 768,431 | <p>Switch statements with <code>String</code> cases have been implemented in <a href="http://openjdk.java.net/projects/jdk7/features/" rel="nofollow noreferrer">Java SE 7</a>, at least 16 years <a href="https://bugs.java.com/bugdatabase/view_bug.do?bug_id=1223179" rel="nofollow noreferrer">after they were first request... |
1,102,692 | How to alpha blend RGBA unsigned byte color fast? | <p>I am using c++ , I want to do alpha blend using the following code.</p>
<pre><code>#define CLAMPTOBYTE(color) \
if ((color) & (~255)) { \
color = (BYTE)((-(color)) >> 31); \
} else { \
color = (BYTE)(color); \
}
#define GET_BYTE(accessPixel, x, y, scanline, bpp) \
((BYTE*)(... | 1,102,810 | 17 | 3 | null | 2009-07-09 09:04:36.64 UTC | 23 | 2021-12-08 09:16:52.01 UTC | 2016-12-12 02:35:04.663 UTC | null | 432,509 | null | 25,749 | null | 1 | 23 | c++|performance | 30,781 | <p><a href="http://www2.units.it/~csia/calcolointensivo/tartaglia/intel/cce/intref_cls.pdf" rel="noreferrer">Use SSE</a> - start around page 131. </p>
<p>The basic workflow</p>
<ol>
<li><p>Load 4 pixels from src (16 1 byte numbers) RGBA RGBA RGBA RGBA (streaming load)</p></li>
<li><p>Load 4 more which you want to ble... |
157,429 | What are the benefits of using Perforce instead of Subversion? | <p>My team has been using SVN for a few years. We now have the option of switching to Perforce.</p>
<p>What would be the benefits (and pitfalls) of making such a switch?</p> | 157,482 | 17 | 0 | null | 2008-10-01 12:52:46.46 UTC | 24 | 2016-05-11 13:26:31.41 UTC | 2008-10-01 13:03:34.173 UTC | jfm3 | 11,138 | Ferruccio | 4,086 | null | 1 | 66 | svn|perforce | 42,729 | <ul>
<li>P4 keeps track of your working copy on the server. This means that
<ol>
<li>Large working copies are processed much faster. I used to have a large SVN project and a simple update took 15 minutes because it had to create a tree of the local working copy (thousands of folders). File access is slow. P4 stores th... |
798,545 | What is the Java ?: operator called and what does it do? | <p>I have been working with Java a couple of years, but up until recently I haven't run across this construct:</p>
<pre><code>int count = isHere ? getHereCount(index) : getAwayCount(index);
</code></pre>
<p>This is probably a very simple question, but can someone explain it? How do I read it? I am pretty sure I kno... | 798,556 | 17 | 4 | null | 2009-04-28 15:28:50.42 UTC | 52 | 2022-03-22 07:01:39.943 UTC | 2016-05-27 09:44:54.467 UTC | null | 1,752,988 | null | 33,863 | null | 1 | 188 | java|syntax|ternary-operator|conditional-operator | 261,170 | <p>Yes, it is a shorthand form of</p>
<pre><code>int count;
if (isHere)
count = getHereCount(index);
else
count = getAwayCount(index);
</code></pre>
<p>It's called the <strong>conditional operator</strong>. Many people (erroneously) call it <em>the ternary operator</em>, because it's the only ternary (three-arg... |
74,148 | How to convert numbers between hexadecimal and decimal | <p>How do you convert between hexadecimal numbers and decimal numbers in C#?</p> | 74,223 | 20 | 0 | null | 2008-09-16 16:18:59.327 UTC | 48 | 2022-02-22 22:44:53.993 UTC | 2018-12-10 09:52:57.623 UTC | null | 1,671,066 | Andy McCluggage | 3,362 | null | 1 | 168 | c#|hex|type-conversion|decimal | 414,072 | <p>To convert from decimal to hex do...</p>
<pre><code>string hexValue = decValue.ToString("X");
</code></pre>
<p>To convert from hex to decimal do either...</p>
<pre><code>int decValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
</code></pre>
<p>or </p>
<pre><code>int decValue = Convert.T... |
869,033 | How do I copy an object in Java? | <p>Consider the code below:</p>
<pre><code>DummyBean dum = new DummyBean();
dum.setDummy("foo");
System.out.println(dum.getDummy()); // prints 'foo'
DummyBean dumtwo = dum;
System.out.println(dumtwo.getDummy()); // prints 'foo'
dum.setDummy("bar");
System.out.println(dumtwo.getDummy()); // prints 'bar' but it should... | 869,078 | 23 | 0 | null | 2009-05-15 14:30:26.943 UTC | 305 | 2021-12-08 11:57:38.64 UTC | 2017-12-23 19:15:19.35 UTC | null | 5,345,646 | null | 42,372 | null | 1 | 896 | java|object|copy|clone | 1,401,924 | <p>Create a copy constructor:</p>
<pre><code>class DummyBean {
private String dummy;
public DummyBean(DummyBean another) {
this.dummy = another.dummy; // you can access
}
}
</code></pre>
<p>Every object has also a clone method which can be used to copy the object, but don't use it. It's way too easy to c... |
181,530 | Styling multi-line conditions in 'if' statements? | <p>Sometimes I break long conditions in <code>if</code>s onto several lines. The most obvious way to do this is:</p>
<pre><code> if (cond1 == 'val1' and cond2 == 'val2' and
cond3 == 'val3' and cond4 == 'val4'):
do_something
</code></pre>
<p>Isn't very very appealing visually, because the action blends wi... | 181,557 | 30 | 5 | null | 2008-10-08 06:19:07.67 UTC | 157 | 2019-10-25 17:28:13.22 UTC | 2017-05-30 17:35:39.673 UTC | DzinX | 355,230 | eliben | 8,206 | null | 1 | 825 | python|coding-style|if-statement | 1,490,075 | <p>You don't need to use 4 spaces on your second conditional line. Maybe use:</p>
<pre><code>if (cond1 == 'val1' and cond2 == 'val2' and
cond3 == 'val3' and cond4 == 'val4'):
do_something
</code></pre>
<p>Also, don't forget the whitespace is more flexible than you might think:</p>
<pre><code>if (
... |
6,492,033 | Return value for performSelector: | <p>What will the return value for performSelector: if I pass a selector that returns a primitive type (on object), such as 'week' on NSDateComponents (which will return an int)?</p> | 10,973,879 | 5 | 0 | null | 2011-06-27 11:18:09.223 UTC | 12 | 2017-03-29 02:37:23.94 UTC | null | null | null | null | 74,415 | null | 1 | 41 | objective-c|cocoa-touch|cocoa|performselector | 20,516 | <p>An example of using NSInvocation to return a float:</p>
<pre><code>SEL selector = NSSelectorFromString(@"someSelector");
if ([someInstance respondsToSelector:selector]) {
NSInvocation *invocation = [NSInvocation invocationWithMethodSignature:
[[someInstance class] instanceMethodS... |
6,550,795 | Uncaught TypeError: Cannot read property 'value' of undefined | <p>I have some JavaScript code that gives this error</p>
<pre class="lang-none prettyprint-override"><code>Uncaught TypeError: Cannot read property 'value' of undefined
</code></pre>
<p>Code</p>
<pre><code>var i1 = document.getElementById('i1');
var i2 = document.getElementById('i2');
var __i = {'user' : document.ge... | 6,550,881 | 7 | 0 | null | 2011-07-01 16:43:31.837 UTC | 15 | 2020-04-07 19:59:30.07 UTC | 2020-04-07 19:59:30.07 UTC | null | 12,820,864 | null | 572,737 | null | 1 | 55 | javascript|typeerror | 670,951 | <p>Seems like one of your values, with a property key of 'value' is undefined. Test that <code>i1</code>, <code>i2</code>and <code>__i</code> are defined before executing the if statements:</p>
<pre><code>var i1 = document.getElementById('i1');
var i2 = document.getElementById('i2');
var __i = {'user' : document.getEl... |
38,129,284 | Is GCM (now FCM) free for any limit? | <p>I would like to know if Firebase Cloud Messaging is free or not for unlimited users?</p> | 38,316,883 | 4 | 2 | null | 2016-06-30 16:59:45.723 UTC | 10 | 2021-04-20 18:14:28.16 UTC | 2018-12-18 14:21:50.35 UTC | null | 1,079,901 | null | 5,097,682 | null | 1 | 64 | android|firebase|google-cloud-platform|google-cloud-messaging|firebase-cloud-messaging | 52,206 | <p>In addition to the <a href="https://stackoverflow.com/a/38136653/1079901">answer</a> from <a href="https://stackoverflow.com/users/4625829/al">AL</a>.<br />
From the <a href="https://firebase.google.com/pricing/" rel="noreferrer">Pricing page Faqs</a>:</p>
<blockquote>
<p><strong>Which products are paid? Which are f... |
15,720,545 | Use stat_summary to annotate plot with number of observations | <p>How can I use <code>stat_summary</code> to label a plot with <code>n = x</code> where is <code>x</code> a variable? Here's an example of the desired output:</p>
<p><img src="https://i.stack.imgur.com/EX1ab.png" alt="enter image description here"></p>
<p>I can make that above plot with this rather inefficient code:... | 15,720,769 | 2 | 0 | null | 2013-03-30 16:00:48.067 UTC | 8 | 2018-03-20 03:14:48.183 UTC | 2017-05-23 11:55:07.73 UTC | null | -1 | null | 1,036,500 | null | 1 | 17 | r|graph|plot|ggplot2 | 23,634 | <p>You can make your own function to use inside the <code>stat_summary()</code>. Here <code>n_fun</code> calculate place of y value as <code>median()</code> and then add <code>label=</code> that consist of <code>n=</code> and number of observations. It is important to use <code>data.frame()</code> instead of <code>c()<... |
15,818,364 | VS 2012 launching app based on wrong path | <p>I have a app which is under source control (TFS 2012 also) on c:\Dev\MyApp\Main.</p>
<p>Because im developing a new feature I decided to open a branch on c:\Dev\MyApp\BranchNewFeature.</p>
<p>I developed and when I decided that it was time to test it was like i hadn't done any changes at all. I hit F5 and i see th... | 16,619,659 | 7 | 7 | null | 2013-04-04 17:58:47.93 UTC | 9 | 2016-10-14 13:15:40.09 UTC | 2013-05-18 00:49:17.723 UTC | null | 2,069 | null | 505,990 | null | 1 | 21 | iis|version-control|visual-studio-2012|iis-express | 13,197 | <p>I ran into the same issue. To fix it, I used <a href="https://stackoverflow.com/users/1443490/cheesemacfly">cheesemacfly</a>'s suggestion, to update <code>C:\Users\%USERNAME%\Documents\IISExpress\config\applicationhost.config</code> to point to the new directory.</p>
<p>The obvious downside with this solution is t... |
35,789,520 | How do I put object to amazon s3 using presigned url? | <p>I am trying to use signed url to upload images to s3 bucket. Following is my bucket policy: </p>
<pre><code>{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "",
"Effect": "Allow",
"Principal": {
"AWS": [
"arn:aws:iam::12345678... | 35,923,104 | 5 | 7 | null | 2016-03-04 06:35:52.243 UTC | 9 | 2021-03-04 06:22:57.127 UTC | 2016-03-09 18:37:13.633 UTC | null | 3,698,232 | null | 3,698,232 | null | 1 | 28 | javascript|node.js|amazon-web-services|amazon-s3|pre-signed-url | 28,999 | <p>I managed to succesfully upload a file by using your code. </p>
<p>Here are the steps I followed:</p>
<ol>
<li><p>Created a new bucket and a new IAM user</p></li>
<li><p>Set IAM user's policy as below:</p>
<pre><code>{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "Stmt1418647210000... |
10,743,622 | ConcurrentHashMap: avoid extra object creation with "putIfAbsent"? | <p>I am aggregating multiple values for keys in a multi-threaded environment. The keys are not known in advance. I thought I would do something like this:</p>
<pre><code>class Aggregator {
protected ConcurrentHashMap<String, List<String>> entries =
new ConcurrentHashMap<S... | 10,743,710 | 7 | 3 | null | 2012-05-24 18:54:25.49 UTC | 21 | 2017-08-11 09:55:26.997 UTC | 2015-04-02 14:04:55.297 UTC | user166390 | 146,197 | null | 389,051 | null | 1 | 42 | java|synchronization|thread-safety|concurrenthashmap | 18,953 | <p>Java 8 introduced an API to cater for this exact problem, making a 1-line solution:</p>
<pre><code>public void record(String key, String value) {
entries.computeIfAbsent(key, k -> Collections.synchronizedList(new ArrayList<String>())).add(value);
}
</code></pre>
<p>For Java 7:</p>
<pre><code>public v... |
10,817,721 | Wipe data/Factory reset through ADB | <p>Basically this is my problem/</p>
<p>I have 200+ phones running stock Android that need to be wiped (in the Wipe Data/Factory Reset way) and then a new ROM installed with some additional apks.</p>
<p>Currently I've got everything automated except the Wipe Data part. Everything else can be done through a .bat with ... | 10,829,600 | 1 | 5 | null | 2012-05-30 13:52:53.803 UTC | 20 | 2014-03-20 15:57:10.22 UTC | null | null | null | null | 1,267,231 | null | 1 | 60 | android|adb|reset|recovery | 324,689 | <p>After a lot of digging around I finally ended up downloading the source code of the recovery section of Android. Turns out you can actually send commands to the recovery.</p>
<pre><code> * The arguments which may be supplied in the recovery.command file:
* --send_intent=anystring - write the text out to recovery... |
31,748,575 | How to access the Component on a Angular2 Directive? | <p>I'm doing some tests with Angular 2 and I have a directive (layout-item) that can be applied to all my components.</p>
<p>Inside that directive I want to be able to read some metadata defined on the component but for that I need to access the component's reference.</p>
<p>I have tried the following approach but I ... | 31,796,289 | 6 | 3 | null | 2015-07-31 14:25:47.933 UTC | 13 | 2021-06-13 11:16:37.123 UTC | 2018-08-13 04:26:17.713 UTC | user6749601 | null | null | 1,613,980 | null | 1 | 16 | typescript|angular | 26,524 | <p><strong>UPDATE</strong>:</p>
<p>Since Beta 16 there is no official way to get the same behavior. There is an unofficial workaround here: <a href="https://github.com/angular/angular/issues/8277#issuecomment-216206046" rel="nofollow">https://github.com/angular/angular/issues/8277#issuecomment-216206046</a></p>
<hr>
... |
33,575,109 | MySQL - Entity : The value for column 'IsPrimaryKey' in table 'TableDetails' is DBNull | <p>I am using <strong>Visual Studio 2013</strong> with <strong>Entity Framework 5</strong> and M<strong>ySQL Server 5.7.9</strong>.</p>
<p>When trying to create a Model from the database (<em>or 'Update Model From Database'</em>) the following message appears:</p>
<blockquote>
<p>'System.Data.StrongTypingException:... | 35,422,569 | 11 | 5 | null | 2015-11-06 20:21:19.617 UTC | 40 | 2017-12-26 08:29:15.457 UTC | 2015-11-06 21:26:54.11 UTC | null | 1,669,037 | null | 1,669,037 | null | 1 | 53 | c#|mysql|entity-framework | 60,099 | <p>Entity Framework (version 6.1.3) and MySQL Server (>= 5.7.6)</p>
<p>One way to resolve the issue is,</p>
<pre><code>1. Open Services (services.msc) and restart MySQL57 service.
2. Execute the following commands in MySQL.
use <<database name>>;
set global optimizer_switch='derived_merge=OFF';
3. U... |
13,729,788 | Very large single page application design problems | <p>I am currently writing whats going to be a very, very large single page web/javascript application.</p>
<p>Technologies I am using are ASP.NET MVC4, jquery, knockout.js and amplify.js.</p>
<p>The problem I am having is that most if not all of the single page application examples are for smaller applications where ... | 13,730,376 | 8 | 2 | null | 2012-12-05 18:18:01.157 UTC | 10 | 2017-05-24 22:01:20.937 UTC | 2013-06-25 15:40:06.657 UTC | null | 825,559 | null | 825,559 | null | 1 | 9 | javascript|jquery|asp.net-mvc-4|angularjs|singlepage | 16,208 | <p>This is actually a very complicated question as it really gets down to the design of your architecture.</p>
<p>For large-scale single-page applications, it's best to use some sort of front-end MV* style framework such as <a href="http://backbonejs.org" rel="noreferrer">backbone.js</a>, which ties in to jQuery quite... |
13,787,258 | PyCrypto install error on Windows | <p>I am trying to install <a href="http://pypi.python.org/pypi/pycrypto/2.6" rel="noreferrer">PyCrypto 2.6</a> Library on my computer. But I keep getting the following error</p>
<pre><code>D:\Software\Python\package\pycrypto-2.6>python setup.py build
running build
running build_py
running build_ext
warning: GMP or ... | 13,787,598 | 9 | 3 | null | 2012-12-09 12:09:12.137 UTC | 3 | 2021-11-03 15:10:17.027 UTC | 2017-05-23 11:54:55.323 UTC | null | -1 | null | 777,593 | null | 1 | 16 | python|python-3.x|distutils|pycrypto | 43,931 | <p>I managed to install PyCrypto 2.6 by using the <a href="http://www.voidspace.org.uk/downloads/pycrypto26/pycrypto-2.6.win-amd64-py3.3.exe" rel="noreferrer">prebuilt binary for Python3.3</a> from <a href="http://www.voidspace.org.uk/python/modules.shtml#pycrypto" rel="noreferrer">The Voidspace Python Modules</a>.</p>... |
13,556,885 | How to change the executable output directory for Win32 builds, in CMake? | <p>My problem is as such :
I'm developing a small parser using Visual Studio 2010.
I use CMake as a build configuration tool.</p>
<p>But I find the default executable building behaviour, inconvenient.
What I want is, have my final program be located in :</p>
<pre><code>E:/parsec/bin/<exe-name>.<build-type>... | 13,562,211 | 2 | 0 | null | 2012-11-25 23:51:38.09 UTC | 8 | 2012-11-26 09:47:04.657 UTC | null | null | null | null | 683,913 | null | 1 | 18 | c++|visual-studio|cmake | 35,023 | <p>There are several options:</p>
<ol>
<li>Copy the executable after building</li>
<li>Customizing the output-directory for your executable(s)</li>
</ol>
<h2>Copy the executable after building</h2>
<p>After a succesful build you can copy the executable (see Beginners answer), but perhaps it is nicer to use an instal... |
13,487,625 | Overlaying two graphs using ggplot2 in R | <p>I have two graphs and I am trying to overlay one on top of the other:</p>
<p>An example of the data frame "ge" looks like this. In actuality there are 10 Genes with 200 samples each, so there are 2000 rows and 3 columns:</p>
<pre><code>Exp Gene Sample
903.0 1 1
1060.0 1 2
786.0 1 3
73... | 13,488,046 | 2 | 0 | null | 2012-11-21 06:32:13.957 UTC | 8 | 2018-07-02 18:45:56.063 UTC | 2012-11-21 07:03:42.82 UTC | null | 1,342,339 | null | 1,342,339 | null | 1 | 27 | r|graph|ggplot2 | 98,717 | <p>One way is to add the <code>geom_line</code> command for the second plot to the first plot. You need to tell <code>ggplot</code> that this geom is based on a different data set:</p>
<pre><code>ggplot(avg, aes(x=Gene, y=mean)) +
geom_point() +
geom_line() +
geom_errorbar(aes(ymin=mean-sd, ymax=mean+sd), wid... |
13,525,140 | How to solve the "TypeError: array.splice is not a function" when 'var array = {}'? | <blockquote>
<p><strong>Possible Duplicate:</strong><br>
<a href="https://stackoverflow.com/questions/208105/how-to-remove-a-property-from-a-javascript-object">How to remove a property from a javascript object</a><br>
<a href="https://stackoverflow.com/questions/368280/javascript-hashmap-equivalent">JavaScript Ha... | 13,525,373 | 5 | 9 | null | 2012-11-23 08:09:11.717 UTC | 3 | 2015-08-03 10:55:42.853 UTC | 2017-05-23 12:26:23.81 UTC | null | -1 | null | 920,796 | null | 1 | 40 | javascript|jquery|arrays | 107,645 | <p>First of all, name your variables what they are. The name <code>array</code> you're using, is misleading if you use it to create a object.</p>
<pre><code>var myObject = {};
myObject[an_object] = "xyz";
myObject[another_object] = "abc";
</code></pre>
<p>Now, you can delete the entry in the object with the <co... |
13,648,515 | Why doesn't $.each() iterate through every item? | <p>I have the following markup containing 10 <code>pre</code> elements with the class <code>indent</code>:</p>
<pre><code><pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
&... | 13,648,529 | 3 | 4 | null | 2012-11-30 15:50:29.41 UTC | 5 | 2013-09-09 11:51:48.793 UTC | 2012-12-03 12:08:55.63 UTC | null | 263,525 | null | 370,103 | null | 1 | 54 | javascript|iteration|jquery | 3,225 | <pre><code>$.each(".indent", function(index){
</code></pre>
<p>doesn't iterate over the elements of <code>$('.indent')</code> but over the <code>".indent"</code> string whose length is 7 chars.</p>
<p>See <a href="http://api.jquery.com/jQuery.each/" rel="noreferrer">reference</a></p>
<hr>
<p><strong>A more detailed... |
13,372,179 | Creating a folder when I run file_put_contents() | <p>I have uploaded a lot of images from the website, and need to organize files in a better way.
Therefore, I decide to create a folder by months.</p>
<pre><code>$month = date('Yd')
file_put_contents("upload/promotions/".$month."/".$image, $contents_data);
</code></pre>
<p>after I tried this one, I get error result.... | 13,372,192 | 6 | 0 | null | 2012-11-14 02:28:31.53 UTC | 13 | 2022-02-08 15:23:52.043 UTC | 2014-12-01 16:37:47.283 UTC | null | 2,264,626 | null | 1,454,031 | null | 1 | 78 | php | 72,864 | <p><a href="http://us1.php.net/file_put_contents" rel="noreferrer"><code>file_put_contents()</code></a> does not create the directory structure. Only the file.</p>
<p>You will need to add logic to your script to test if the <em>month</em> directory exists. If not, use <a href="http://us1.php.net/mkdir" rel="noreferrer... |
24,245,230 | 'http-server' is not recognized as an internal or external command | <p>After installing angular-seed project, i did the following steps:</p>
<p>Cloned the repository : </p>
<blockquote>
<p>git clone <a href="https://github.com/angular/angular-seed.git">https://github.com/angular/angular-seed.git</a> </p>
<p>cd angular-seed</p>
</blockquote>
<p>Then I ran npm install</p>
<p>a... | 24,257,994 | 7 | 2 | null | 2014-06-16 13:44:34.807 UTC | 6 | 2021-06-29 04:35:41.8 UTC | null | null | null | null | 345,944 | null | 1 | 20 | node.js|angularjs|npm|angular-seed | 55,515 | <p>@BenFortune found the answer it was</p>
<p>http-server needs to be installed globally with <code>npm install -g http-server</code></p> |
23,950,450 | Slow scroll speed down | <p>Ok, so I can't find anything about this. </p>
<p>I know it is horrible to change the scroll speed of a site, but I need to do this for a site which is more a game than a site. </p>
<p>Can someone tell me how to slow down de scrollspeed? Jquery or css?</p>
<p>EDIT: I want to change the scrollspeed whem people scro... | 23,950,885 | 4 | 3 | null | 2014-05-30 08:45:38.22 UTC | 2 | 2019-12-02 09:31:59.06 UTC | 2014-05-30 08:52:29.637 UTC | null | 1,737,979 | null | 1,737,979 | null | 1 | 14 | jquery|html|css|scroll | 57,361 | <p><a href="https://nicescroll.areaaperta.com" rel="nofollow noreferrer"><strong>NiceScroll</strong></a> Plugin</p>
<p><strong>jQuery</strong></p>
<pre><code>$(document).ready(function() {
$("html").niceScroll();
}
);
</code></pre> |
3,391,585 | How does an .apk files get signed | <p>This is not a question about how to sign an .apk file. I want to know what does signing actually means and how it is implemented.</p>
<p>Inside the .apk file there is META-INF folder and inside that there are two files.</p>
<p>First one is CERT.SF contains SHA1 hashes for various components and looks like this:</p... | 3,391,855 | 2 | 0 | null | 2010-08-02 20:43:41.73 UTC | 10 | 2012-02-21 20:48:17.287 UTC | null | null | null | null | 33,885 | null | 1 | 22 | android|code-signing | 13,484 | <p>This actually has nothing to do with Android. APK files are signed using <code>jarsigner</code>. <a href="http://www.manpagez.com/man/1/jarsigner/" rel="nofollow noreferrer">Here is a link to the manpage</a>.</p> |
45,416,000 | Why is the sum of an int and a float an int? | <p>Consider the following code:</p>
<pre><code>float d = 3.14f;
int i = 1;
auto sum = d + i;
</code></pre>
<p>According to <a href="http://en.cppreference.com/w/c/language/conversion" rel="noreferrer">cppreference.com</a>, <code>i</code> should be converted to <code>float</code> when it is added to <code>d</code>... | 45,416,095 | 3 | 8 | null | 2017-07-31 12:30:06.557 UTC | 10 | 2017-08-10 12:25:57.617 UTC | 2017-08-10 12:25:57.617 UTC | null | 366,904 | null | 5,193,248 | null | 1 | 46 | c++|c|type-conversion | 21,052 | <p>In C (and C++), <code>3.14f + 1</code> is a <code>float</code> type due to <em>type promotion</em> of <code>int</code> to <code>float</code>.</p>
<p><strong>But</strong> in C, up to and including C90, and such a standard may well possibly be your C compiler default, this is assigned to an <code>int</code> type, yie... |
9,057,387 | Process all arguments except the first one (in a bash script) | <p>I have a simple script where the first argument is reserved for the filename, and all other optional arguments should be passed to other parts of the script.</p>
<p>Using Google I found <a href="http://wiki.bash-hackers.org/scripting/posparams#mass_usage">this wiki</a>, but it provided a literal example:</p>
<pre>... | 9,057,392 | 5 | 2 | null | 2012-01-29 22:31:22.757 UTC | 140 | 2020-06-29 04:35:59.09 UTC | 2016-08-23 23:19:16.77 UTC | null | 875,915 | null | 992,005 | null | 1 | 588 | bash|shell | 243,170 | <p>Use this:</p>
<pre><code>echo "${@:2}"
</code></pre>
<hr>
<p>The following syntax:</p>
<pre><code>echo "${*:2}"
</code></pre>
<p>would work as well, but is not recommended, because as <a href="https://stackoverflow.com/questions/9057387/process-all-arguments-except-the-first-one#comment11369452_9057392">@Gordon... |
16,542,118 | Phonegap - navigator.app.backHistory() not working on HTML back button | <p>In my app i am using phonegap 2.6.For back button, I am using the following function</p>
<pre><code>document.addEventListener("backbutton", onBackKeyDown, false);
function onBackKeyDown() {
alert("hello");
navigator.app.backHistory();
}
document.addEventListener('deviceready', onDeviceReady, true);
</code... | 16,589,826 | 5 | 1 | null | 2013-05-14 11:34:59.74 UTC | 8 | 2022-02-16 16:41:23.13 UTC | 2013-05-14 12:13:25.013 UTC | null | 1,127,669 | null | 1,254,796 | null | 1 | 17 | android|ios|cordova|back-button|back-button-control | 28,580 | <p>I have tried 3 separate things when I faced the same situation:</p>
<ul>
<li><p><code>window.history.back()</code></p></li>
<li><p><code>navigator.app.backHistory();</code></p></li>
<li><p><code>History.go(-1);</code></p></li>
</ul>
<p>Individually, none of these solve the problem. I put all 3 things together and ... |
16,368,937 | getDimension()/getDimensionPixelSize() - mutliplier issue | <p>So I have android 2.3.5 device which is NORMAL/HDPI. I have a dimens.xml in my project:</p>
<pre><code>...
<dimen name="gameresult_congrats_label_msg_textSize">20sp</dimen>
...
</code></pre>
<p>this file is absolutely identical in values-normal/values-hdpi and so on folders.
In my first activity ap... | 16,369,021 | 5 | 1 | null | 2013-05-03 23:23:16.81 UTC | 5 | 2021-09-17 07:34:33.98 UTC | 2014-04-09 14:21:30.83 UTC | null | 1,811,719 | null | 1,811,719 | null | 1 | 21 | android|textview|dimensions | 48,274 | <p>Per the <a href="http://developer.android.com/training/multiscreen/screendensities.html">Supporting Different Screen Densities training</a>, hdpi is 1.5x normal (mdpi) sizes. As <code>getDimensionPixelSize</code> takes this difference into account when converting into pixels, the returned value will be 1.5x your val... |
16,446,619 | How to ignore enum fields in Jackson JSON-to-Object mapping? | <p>I have a JSON Object something like:</p>
<pre><code>{"name":"John", "grade":"A"}
</code></pre>
<p>or</p>
<pre><code>{"name":"Mike", "grade":"B"}
</code></pre>
<p>or</p>
<pre><code>{"name":"Simon", "grade":"C"}
</code></pre>
<p>etc</p>
<p>I am trying to map the above JSON to:</p>
<pre><code>@JsonIgnorePropert... | 16,447,052 | 5 | 3 | null | 2013-05-08 17:20:48.533 UTC | 9 | 2020-10-30 15:22:12.037 UTC | 2013-05-08 18:57:21.917 UTC | null | 1,522,067 | null | 1,522,067 | null | 1 | 26 | java|jackson | 31,398 | <p>I think you should define external <a href="http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jackson/map/JsonDeserializer.html" rel="noreferrer">deserializer</a> for <code>Grade</code> enum.</p>
<p>I added additional field to enum - UNKNOWN:</p>
<pre><code>enum Grade {
A, B, C, UNKNOWN;
public stati... |
16,047,829 | Proxy cannot be cast to CLASS | <p>I'm using Spring for wiring dependencies specifically for DAO classes that use Hibernate, but I'm getting an exception that has me puzzled:</p>
<p><strong>$Proxy58 cannot be cast to UserDao</strong></p>
<p>My DAO is configured as follows:</p>
<pre><code><bean id="userDao" class="com.domain.app.dao.UserDao">... | 16,047,976 | 2 | 1 | null | 2013-04-16 21:56:10.42 UTC | 8 | 2018-02-01 14:25:13.863 UTC | 2013-04-18 21:25:03.32 UTC | null | 1,150,982 | null | 1,150,982 | null | 1 | 27 | spring|hibernate|casting | 32,018 | <p>Spring uses <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/reflect/Proxy.html" rel="noreferrer">JDK dynamic proxies</a> by default (<code>$Proxy58</code> is one of them), that can only proxy interfaces. This means that the dynamically created type <code>$Proxy58</code> will implement one or more of the ... |
16,239,819 | Performance of Firebase with large data sets | <p>I'm testing firebase for a project that may have a reasonably large numbers of keys, potentially millions.</p>
<p>I've tested loading a few 10k of records using node, and the load performance appears good. However the "FORGE" Web UI becomes unusably slow and renders every single record if I expand my root node.</p>... | 16,240,601 | 1 | 1 | null | 2013-04-26 15:15:23.137 UTC | 41 | 2014-12-19 15:43:15.01 UTC | 2014-12-19 15:43:15.01 UTC | null | 52,522 | null | 1,421,831 | null | 1 | 29 | firebase | 26,696 | <p>It's simply the limitations of the Forge UI. It's still fairly rudimentary.</p>
<p>The real-time functions in Firebase are not only suited for, but designed for large data sets. The fact that records stream in real-time is perfect for this.</p>
<p>Performance is, as with any large data app, only as good as your im... |
21,724,337 | Signing and Verifying on iOS using RSA | <p>How to sign and verify some data on iOS with an RSA key (preferably using the system own <code>libcommonCrypto</code>)?</p> | 21,826,729 | 2 | 6 | null | 2014-02-12 09:53:50.44 UTC | 16 | 2021-01-09 09:45:38.793 UTC | null | null | null | null | 1,037,200 | null | 1 | 20 | ios|rsa|pkcs#7|commoncrypto | 14,219 | <p>Since there hasn't been nearly any knowledge about signing and verifying found on StackOverflow and the Apple docs, I had to manually browse around in the iOS header files and found <code>SecKeyRawSign</code> and <code>SecKeyRawVerify</code>. The following lines of code seem to work.</p>
<hr>
<p><strong>Signing NS... |
17,358,159 | Why use CJSON encode when we have json_encode | <p>I am building an API for a website using Yii. I know that there is a utility class called CJson and has a function called encode.</p>
<p>As far as I know there are additional parameters that can be customized in the native json_encode function like the JSON_NUMERIC_CHECK which is really useful. It creates</p>
<pre... | 17,358,224 | 4 | 1 | null | 2013-06-28 06:00:05.94 UTC | 2 | 2016-02-02 09:12:37.62 UTC | null | null | null | null | 923,109 | null | 1 | 30 | php|json|yii | 7,421 | <p>Only thing I can think minimum php version support. </p>
<p>Yii support php 5.1 as minimum version See <a href="http://www.yiiframework.com/doc/guide/1.1/en/quickstart.installation">Yii Installation Page</a> . While json_encode/json_decode introduced in php 5.2. So It can be a reason for Yii having a library for CJ... |
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