Created
July 14, 2012 17:08
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Comparator function
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| /* | |
| Ridiculously useful function | |
| Sorts elements of an array by properties | |
| Usage: | |
| Sort elements by property prop1, then by prop2 if prop1 values are equal | |
| someArrayOfObjects.sort(comparator('prop1', 'prop2')); | |
| */ | |
| function comparator(){ | |
| var props = [].slice.call(arguments); | |
| return function(a, b){ | |
| var p = props.slice(0), prop; | |
| while(prop = p.shift()){ | |
| if(a[prop] < b[prop]) return -1; | |
| if(a[prop] > b[prop]) return 1; | |
| } | |
| return 0; | |
| }; | |
| } |
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