Info

Is a hash (array) really faster than a switch?

Preparation code

<script>
  var theVar = 'j';
  
  var cases = {
   a: 'a',
   b: 'b',
   c: 'c',
   d: 'd',
   e: 'e',
   f: 'g',
   h: 'h',
   i: 'i',
   j: 'j'
  };
</script>

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switch (theVar) {
case 'a':
 'a';
 break;
case 'b':
 'b';
 break;
case 'c':
 'c';
 break;
case 'd':
 'd';
 break;
case 'e':
 'e'
 break;
case 'f':
 'f';
 break;
case 'g':
 'g';
 break;
case 'h':
 'h';
 break;
case 'i':
 'i';
 break;
case 'j':
 'j';
 break;
default:
 'default';
 break;
}

if (!cases[theVar]) {
 'default';
}

(cases[theVar] || 'default');

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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 2: published by David Calhoun on 17th August 2010
• Revision 4: published on 17th August 2010
• Revision 7: published by Kevin Decker on 17th August 2010
• Revision 8: published by layane on 17th August 2010
• Revision 10: published on 17th April 2011
• Revision 11: published on 18th April 2011
• Revision 14: published by Maciej Pawłowski on 18th November 2011
• Revision 16: published on 15th March 2012
• Revision 17: published 1 day ago
• Revision 18: published 1 day ago

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