string concat vs array join

JavaScript performance comparison

Revision 65 of this test case created by Test

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var words = ['this', 'is', 'a', 'test'];
  
  var text = words[0];
  
  var a = new Array(10000);
  a[0] = words[0];
  
  var i;
  
  var text2;

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Concat
console.log("this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence" + "this" + "is" + "a" + "sentence");
pending…
Join
console.log(["this", "is", "a", "sentence", "this", "is", "a", "sentence", "this", "is", "a", "sentence" ,"this", "is", "a", "sentence" ,"this", "is", "a", "sentence", "this", "is", "a", "sentence", "this", "is", "a", "sentence", "this", "is", "a", "sentence" ,"this", "is", "a", "sentence" ,"this", "is", "a", "sentence"].join(""));
pending…

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