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Deep Copy an Array or Object

/ Published in: JavaScript
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  1. function deepCopy(obj) {
  2.     if (Object.prototype.toString.call(obj) === '[object Array]') {
  3.         var out = [], i = 0, len = obj.length;
  4.         for ( ; i < len; i++ ) {
  5.             out[i] = arguments.callee(obj[i]);
  6.         }
  7.         return out;
  8.     }
  9.     if (typeof obj === 'object') {
  10.         var out = {}, i;
  11.         for ( i in obj ) {
  12.             out[i] = arguments.callee(obj[i]);
  13.         }
  14.         return out;
  15.     }
  16.     return obj;
  17. }

URL: http://james.padolsey.com/javascript/deep-copying-of-objects-and-arrays/

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