Slice vs Substr vs Substring Methods

JavaScript performance comparison

Revision 61 of this test case created by

Preparation code

<script>
  var longString = "";
  // Large = 10,000
  for (var i = 0; i < 23; i++) {
        longString += i % 10;
  }
</script>
    

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
Substr.call (short)
for (i = 0; i < longString.length; i++) {
  String.prototype.substr.call(longString, i, i+1);
}
pending…
Slice.call
for (i = 0; i < longString.length; i++) {
  String.prototype.slice.call(longString, i, i + 1);
}
pending…
Substring (long)
for (i = 0; i < longString.length; i++) {
  longString.substring(i, i+1);
}
pending…
Slice
for (i = 0; i < longString.length; i++) {
  longString.slice(i, i + 1);
}
pending…
Substr (short)
for (i = 0; i < longString.length; i++) {
  longString.substr(i, 1);
}
pending…
Substring.call (long)
for (i = 0; i < longString.length; i++) {
  String.prototype.substring.call(longString, i, i+1);
}
pending…

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Revisions

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