h6 - HatSix » one-liners http://hat6.com Hat6 Web Application Engineering Fri, 12 Mar 2010 17:13:32 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 One-line Array Filtering http://hat6.com/2007/08/28/one-line-array-filtering/ http://hat6.com/2007/08/28/one-line-array-filtering/#comments Tue, 28 Aug 2007 19:49:40 +0000 Dusty http://hat6.com/2007/08/28/one-line-array-filtering/ I’m a fan of one-liners, and here’s an AWESOME one-line that saves a LOT of code, use this in a for each() for maximum fun.

someArray().filter(function(o:*, index:int, arr:Array):Boolean{return o.selected})

This makes looping through arrays and checking values quick and painless. You can also add in a .every() function on the end if you’re doing something simple, like tracing or logging (just remember to return false; in the every function).

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