Slice vs Substr vs Substring Methods

JavaScript performance comparison

Revision 125 of this test case created by

Preparation code

<script>
  var longString = "";
  // Large = 10,000
  for (var i = 0; i < 10000; i++) {
        longString += i % 10;
  }
</script>
    

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Substring (long)
for (var i = 0; i < longString.length; i++) {
var s = Math.random() * longString.length;
  var r = longString.substring(0, r) + longString.substring(r+1, longString.length);
}
pending…
Slice (long)
for (var i = 0; i < longString.length; i++) {
var s = Math.random() * longString.length;
  var r = longString.slice(0, r) + longString.slice(r+1, longString.length);
}
pending…
Substr (long)
for (var i = 0; i < longString.length; i++) {
var s = Math.random() * longString.length;
  var r = longString.substr(0, r) + longString.substr(r+1, longString.length);
}
pending…

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