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underscore.js mixin for pick nested properties
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/** | |
* Require _.deep.js from https://gist.github.com/furf/3208381 | |
*/ | |
_.mixin({ | |
deepPick: function (obj) { | |
var ArrayProto = Array.prototype; | |
var copy = {}; | |
var keys = ArrayProto.concat.apply(ArrayProto, ArrayProto.slice.call(arguments, 1)); | |
_.each(keys, function(key) { | |
var val = _.deep(obj, key); | |
if (!_.isUndefined(val)) _.deep(copy, key, val); | |
}); | |
return copy; | |
} | |
}); | |
//Usage: | |
// var obj = { | |
// a : { | |
// b : 'b', | |
// c:'c' | |
// }, | |
// x:{ | |
// y:'y', | |
// z:'z' | |
// } | |
// }; | |
// | |
//_.deepPick(z, 'a.b','x.z'); | |
// | |
// result: | |
// { | |
// a: { | |
// b:'b' | |
// }, | |
// x: { | |
// z:'z' | |
// } | |
//} |
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Really, thanks a lot!