string concat vs array join

JavaScript performance comparison

Revision 30 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  
  var bin = [];
  var text = '';
  var temp = [];
  
  for (var i = 0; i < 10000; i++) {
    bin[i] = i % 256;
  }

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Concat
for(i = 0; i < 10000; ++i)
{
    text += String.fromCharCode(bin[i]);
}

pending…
Join
for(i = 0; i < 10000; ++i)
{
    temp[i] = String.fromCharCode(bin[i]);
}

text = temp.join('');
pending…

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