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scala vs java, performance and memory? [closed]
...deep algorithmic thoughts), but I can also enter my code in obfuscation contests and potentially earn extra cash for the holidays.
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Find index of a value in an array
...o search.</param>
///<param name="predicate">The expression to test the items against.</param>
///<returns>The index of the first matching item, or -1 if no items match.</returns>
public static int FindIndex<T>(this IEnumerable<T> items, Func<T, bool> ...
How to get the focused element with jQuery?
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I've tested two ways in Firefox, Chrome, IE9 and Safari.
(1). $(document.activeElement) works as expected in Firefox, Chrome and Safari.
(2). $(':focus') works as expected in Firefox and Safari.
I moved into the mouse to input ...
Recursively remove files
...rint0 | xargs -0 rm -rf
find . -name "._*" -print0 | xargs -0 rm -rf
Not tested, try them without the xargs first!
You could replace the period after find, with the directory, instead of changing to the directory first.
find /dir/here ...
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Bash syntax error: unexpected end of file
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I.e. this innocent-looking snippet will cause the same error:
die () { test -n "$@" && echo "$@"; exit 1 }
To make the dumb parser happy:
die () { test -n "$@" && echo "$@"; exit 1; }
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UIScrollView scroll to bottom programmatically
...nclude the condition when I pasted in the code. The condition is correctly testing for what it was testing for, though.
– matt
Nov 15 '11 at 17:21
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Convert seconds to Hour:Minute:Second
...es:$seconds";
?>
which produces:
$ php file.php
0:11:25
(I've not tested this much, so there might be errors with floor or so)
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How can I render inline JavaScript with Jade / Pug?
...an example of what i'm trying to do, but it won't compile. I'm using the latest release too.
– JMWhittaker
May 2 '11 at 17:24
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Detect Retina Display
...or in iOS4.2 for the iPad: it returns 1.0 in both 1x and 2x modes. You can test this yourself in the simulator.
I test for the -displayLinkWithTarget:selector: method on the main screen which exists in iOS4.x but not iOS3.2, and then check the screen's scale:
if ([[UIScreen mainScreen] respondsToS...
How to play ringtone/alarm sound in Android
...ht not be null even though it does not point to a valid sound. You should test the return value of RingtoneManager.getRingtone() for null instead/as-well
– Attila
Jan 4 '13 at 18:07
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