Info

In this test case, I check whether which way of converting any input to a string for type safety reason has the least impact on the performance in case a string is passed as argument.

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    window.a = function a(s) {
        return String(s).length;
    }
    
    window.b = function b(s) {
        return (""+s).length;
    }
    
    window.c = function a(s) {
        return String(s).length;
    }
    
    window.d = function b(s) {
        return (""+s).length;
    }
  };
</script>

Test runner

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window.tmp = a("Abc")==3

window.tmp = b("Abc")==3

window.tmp = c("Abc")==3

window.tmp = d("Abc")==3

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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 François REMY on 25th January 2013
• Revision 2: published by François REMY on 26th January 2013

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