Deep Copy vs JSON Stringify / JSON Parse

JavaScript performance comparison

Revision 2 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  function deepCopy(o) {
      var copy = o,k;
   
      if (o && typeof o === 'object') {
          copy = Object.prototype.toString.call(o) === '[object Array]' ? [] : {};
          for (k in o) {
              copy[k] = deepCopy(o[k]);
          }
      }
   
      return copy;
  }
  
  function A(m,n){ 
   function row(k){ 
    var r = []; 
    for(var i=0;i<k;++i){r.push(Math.random()) }
    return r; 
   }
   var M = [];
   for(var j=0; j<m; ++j){ M.push(row(n)) }
   return M;
  }
  
  var M=A(100,100);

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
JSON Stringify / JSON Parse
var bes = JSON.parse(JSON.stringify(M))
pending…
Deep Copy
var bes = deepCopy(M)
pending…

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Revisions

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