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How do I empty an array in JavaScript?
Is there a way to empty an array and if so possibly with .remove() ?
18 Answers
18
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Using comparison operators in Scala's pattern matching system
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You can add a guard, i.e. an if and a boolean expression after the pattern:
a match {
case 10 => println("ten")
case x if x > 10 => println("greater than ten")
case _ => println("less than ten")
}
Edit: Note that this is more than...
How do I center text horizontally and vertically in a TextView?
How do I center the text horizontally and vertically in a TextView , so that it appears exactly in the middle of the TextView in Android ?
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Chrome developer tools: View Console and Sources views in separate views/vertically tiled?
Chrome developer tools: Is there a way to view the Console tab and the Sources tab in separate views? I often want to look at both of these simultaneously.
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django unit tests without a db
... db? I want to test business logic which doesn't require the db to set up. And while it is fast to setup a db, I really don't need it in some situations.
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What should my Objective-C singleton look like? [closed]
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@Paul you can override the release method and make it empty. :)
– user142019
Mar 25 '11 at 22:20
4
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Differences between detach(), hide() and remove() - jQuery
... the DOM completely.
detach() is like remove(), but keeps the stored data and events associated with the matched elements.
To re-insert a detached element into the DOM, simply insert the returned jQuery set from detach():
var span = $('span').detach();
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span.appendTo('body');
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vertical & horizontal lines in matplotlib
I do not quite understand why I am unable to create horizontal and vertical lines at specified limits. I would like to bound the data by this box. However, the sides do not seem to comply with my instructions. Why is this?
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Convert SVG image to PNG with PHP
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That's funny you asked this, I just did this recently for my work's site and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick:
$usmap = '/path/to/blank/us-map.svg';
$im = new Imagick();
$svg = file_get_contents($usmap);
/*loop to color eac...
Always pass weak reference of self into block in ARC?
...am a little confused about block usage in Objective-C. I currently use ARC and I have quite a lot of blocks in my app, currently always referring to self instead of its weak reference. May that be the cause of these blocks retaining self and keeping it from being dealloced ? The question is, sho...