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Is positive integer (v6)

Revision 6 of this benchmark created by Sebastian Poreba on March 12, 2011

Description

Fastest way if a variable contains an positive integer.

Preparation HTML

<script>
  var x = '123';
</script>

Test runner

Ready to run.

Testing in
Test		Ops/sec
Original (buggy)	`parseInt(x) >= 0`	ready
Using Equality	`parseInt(x) === x && x > 0`	ready
Regular Expression	`/^[0-9]+$/.test(x)`	ready
abs equal to original	`(~~x) == x`	ready

Revisions

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

Revision 1: published by Diogo Gomes on August 26, 2010
Revision 3: published by Diogo Gomes on August 26, 2010
Revision 6: published by Sebastian Poreba on March 12, 2011