Slice vs Substr vs Substring vs [ ] Methods (v115)

Revision 115 of this benchmark created on

Description

This is comparing the runtimes of [ ], substr, substring, and slice in a string for large (10000 character) string size.

Preparation HTML

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

Test runner

Ready to run.

Testing in
TestOps/sec
Substring (long)
var substringLength = 20
for (i = 0; i < longString.length; i++) {
  longString.substring(i, i+1);
}
ready
Slice (long)
for (i = 0; i < longString.length; i++) {
  longString.slice(i, i + 1);
}
ready
Substr (long)
for (i = 0; i < longString.length; i++) {
  longString.substr(i, i+1);
}
ready
[ ] (long)
for (i = 0; i < longString.length; i++) {
  longString[i];
}
ready
charAt (long)
for (i = 0; i < longString.length; i++) {
  longString.charAt(i);
}
ready

Revisions

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