string indexOf vs for loop (v4)

Revision 4 of this benchmark created by Simon on

Setup

var str = "abcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyabcdefghijklmnopqrstuvwxyz";

Test runner

Ready to run.

Testing in
TestOps/sec
indexOf start
var index = str.indexOf("a");
ready
for() loop start
var index = -1;
for (var i = 0, l = str.length; i < l; i++) {
  if (str[i] === "a") {
    index = i;
    break;
  }
}
ready
indexOf end
var index = str.indexOf("z");
ready
for() loop end
var index = -1;
for (var i = 0, l = str.length; i < l; i++) {
  if (str[i] === "z") {
    index = i;
    break;
  }
}
ready

Revisions

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