string concat vs array join

JavaScript performance comparison

Revision 19 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  var JSONMember = ["<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>", "<div>"];
  var final = "";

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Concat
JSONMember.forEach(function(str) {
  final += str;
});
pending…
Join
final = JSONMember.join();
pending…
String.concat
final = String.prototype.concat.apply('', JSONMember)
pending…
for loop
for (var i = -1, c = JSONMember.length; ++i < c;) {
  final += JSONMember[i];
}
pending…
for loop
for (var i = -1, c = JSONMember.length; ++i < c;) {
  final += JSONMember[i];
}
pending…

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Revisions

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