Info

Different techniques of decimal number truncation. Tests work on positives as well as negatives.

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var n = 0;
  };
</script>

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n = Math.random() * 1000 - 500;
return n | 0;

n = Math.random() * 1000 - 500;
return ~~n;

n = Math.random() * 1000 - 500;
return n < 0 && Math.ceil(n) || Math.floor(n);

n = Math.random() * 1000 - 500;
return parseInt(n);

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Revisions

You can edit these tests or add even more tests to this page by appending /edit to the URL. Here’s a list of current revisions for this page:

• Revision 1: published by Robert Koritnik on 10th January 2013
• Revision 2: published on 10th April 2013

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