Javascript Array.forEach
A quick tip, while it’s fresh on my mind:
If you are writing Javascript for Firefox or XULRunner—or anything supporting Javascript 1.6 technically—then you don’t need to write loops like
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for (var i = 0; i < some.object.length; i++) {
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var item = some.object[i];
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…
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}
Instead use the generic Array.forEach() function and save yourself from creating a temporary variable. The above is more cleanly written as
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Array.forEach( some.object, function(item) {
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…
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});
This works for any object which has the length property.
Related posts:
- Pitfalls With Optional Arguments
- Javascript: Notes on Scoping
- Returning Multiple Values
- Anonymous Functions With Names?
- Scoping in Javascript With ‘Let’
0 Comment | Posted in Javascript,Programming Languages,blog
by EricR on October 31, 2009
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