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Can I have multiple :before pseudo-elements for the same element?
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In CSS2.1, an element can only have at most one of any kind of pseudo-element at any time. (This means an element can have both a :before and an :after pseudo-element — it just cannot have more than one of each kind.)
As a result,...
JavaScript “new Array(n)” and “Array.prototype.map” weirdness
I've observed this in Firefox-3.5.7/Firebug-1.5.3 and Firefox-3.6.16/Firebug-1.6.2
14 Answers
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How do I get PHP errors to display?
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This always works for me:
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');
error_reporting(E_ALL);
However, this doesn't make PHP to show parse errors - the only way to show those errors is to modify your php.ini with this line:
display_errors = on
(...
Configuring Log4j Loggers Programmatically
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281
You can add/remove Appender programmatically to Log4j:
ConsoleAppender console = new ConsoleA...
fatal: 'origin' does not appear to be a git repository
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117
$HOME/.gitconfig is your global config for git.
There are three levels of config files.
cat ...
HTTP status code for a partial successful request
... for you. If you do, you could do something like so:
<?xml version="1.0" encoding="utf-8" ?>
<D:multistatus xmlns:D='DAV:'>
<D:response>
<D:user>user-123</D:user>
<D:status>success</D:status>
</D:response>
<D:resp...
Chrome Extension Message passing: response not sent
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edited Sep 6 '17 at 14:53
answered Nov 19 '13 at 17:18
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Where does the “flatmap that s***” idiomatic expression in Scala come from?
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edited Jul 6 '14 at 3:22
Abe Voelker
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How does having a dynamic variable affect performance?
..., for example, if you have:
class C
{
void M()
{
dynamic d1 = whatever;
dynamic d2 = d1.Foo();
then the compiler will generate code that is morally like this. (The actual code is quite a bit more complex; this is simplified for presentation purposes.)
class C
{
static...
Greenlet Vs. Threads
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edited May 23 '17 at 12:34
Community♦
111 silver badge
answered Mar 24 '13 at 7:47
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