Created
January 12, 2012 19:04
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key selection, remapping
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| var selectKeys = function(hash, keys) { | |
| var output, prop, index; | |
| output = {}; | |
| if(!keys) return {}; | |
| if(keys instanceof Array) { | |
| for(index = 0; index < keys.length; index++) { | |
| output[keys[index]] = hash[keys[index]]; | |
| } | |
| return output; | |
| } | |
| for(prop in keys) { | |
| if(keys.hasOwnProperty(prop)) { | |
| if(typeof keys[prop] === 'boolean') { | |
| if(keys[prop]) output[prop] = hash[prop]; | |
| // if false, don't copy the property | |
| } else { | |
| output[keys[prop]] = hash[prop]; | |
| } | |
| } | |
| } | |
| return output; | |
| }; |
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That's what I get for copying+pasting out of an object literal.