Create copy of multi-dimensional array, not reference - JavaScript [duplicate]

Answer 1

I'm not sure how much better JSON.stringify and JSON.parse than encode and decode, but you could try:

JSON.parse(JSON.stringify(array));

Something else I found (although I'd modify it a little):

http://www.xenoveritas.org/blog/xeno/the-correct-way-to-clone-javascript-arrays

function deepCopy(obj) {
  if (typeof obj == 'object') {
    if (isArray(obj)) {
      var l = obj.length;
      var r = new Array(l);
      for (var i = 0; i < l; i++) {
        r[i] = deepCopy(obj[i]);
      }
      return r;
    } else {
      var r = {};
      r.prototype = obj.prototype;
      for (var k in obj) {
        r[k] = deepCopy(obj[k]);
      }
      return r;
    }
  }
  return obj;
}