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What, exactly, is needed for “margin: 0 auto;” to work?
...
Off the top of my head:
The element must be block-level, e.g. display: block or display: table
The element must not float
The element must not have a fixed or absolute position1
Off the top of other people's heads:
The element must have a width that is not auto2
...
Git SSH error: “Connect to host: Bad file number”
...GGW shell. Linux users will just get Timed out.
Problem:
SSH is probably blocked on port 22. You can see this by typing
$nmap -sS github.com -p 22
Starting Nmap 5.35DC1 ( http://nmap.org ) at 2011-11-05 10:53 CET
Nmap scan report for github.com (207.97.227.239)
Host is up (0.10s l...
Block Comments in Clojure
How do I comment multiple lines in Clojure?
9 Answers
9
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var functionName = function() {} vs function functionName() {}
...og("Hello!");
}
Historically, function declarations defined within blocks were handled inconsistently between browsers. Strict mode (introduced in ES5) resolved this by scoping function declarations to their enclosing block.
'use strict';
{ // note this block!
function functionT...
jQuery `.is(“:visible”)` not working in Chrome
...e inline elements in Chrome. The solution is to add a display style, like "block" or "inline-block" to make it work.
Also note that jQuery has a somewhat different definition of what is visible than many developers:
Elements are considered visible if they consume space in the document.
Visibl...
How to load local script files as fallback in cases where CDN are blocked/unavailable? [duplicate]
...s to load jQuery (1.5.1) from the google CDN. Since <script> tags do block the overall render & execution process (if not explicitly told different), we can check right after that if the jQuery object is found within window. If not, just fallback by writing another <script> tag into ...
Encode URL in JavaScript?
.... Let's say I want to browse to http://somedomain/this dir has spaces/info.php?a=this has also spaces. It should be converted to: http://somedomain/this%20dir%20has%spaces/info.php?a=this%20has%20also%20spaces but many implementations allow '%20' in the querystring to be replaced by '+'. Nevertheles...
Count Rows in Doctrine QueryBuilder
...lass);
$count = $repository->count();
And in Repository/FooRepository.php
public function count()
{
$qb = $repository->createQueryBuilder('t');
return $qb
->select('count(t.id)')
->getQuery()
->getSingleScalarResult();
}
It's better to move $qb = ....
Java executors: how to be notified, without blocking, when a task completes?
...ort java.util.concurrent.TimeUnit;
public class GetTaskNotificationWithoutBlocking {
public static void main(String... argv) throws Exception {
ExampleService svc = new ExampleService();
GetTaskNotificationWithoutBlocking listener = new GetTaskNotificationWithoutBlocking();
Completab...
How do I make the whole area of a list item in my navigation bar, clickable as a link?
...put padding in the 'li' item. Instead set the anchor tag to display:inline-block; and apply padding to it.
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