Deep Copy vs JSON Stringify / JSON Parse · jsPerf

JavaScript performance comparison Revision 5 of this test case created by on 2013-11-13 Preparation code <script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script> <script> Benchmark.prototype.setup = function() { function recursiveDeepCopy(o) { var newO, i; if (typeof o !== 'object') { return o; } if (!o) { return o; } if ('[object Array]' === Object.prototype.toString.a