Slice vs Substr vs Substring Methods

JavaScript performance comparison

Revision 45 of this test case created by

Preparation code

<script>
  var smallString = "";
  // Small = 100
  for (var i = 0; i < 100; i++) {
        smallString += i % 10;
  }
</script>
    

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

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

Compare results of other browsers

Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL.

0 Comments