Info

How much does returning a value slow a function down?

Preparation code

<script>
  function callback(val) {
   //val++;
  }

  function noReturn(val) {
   val = val - 0;
  }
  
  function doesReturn(val) {
   val = val - 0;
   return callback(val);
  }

  function doesValuelessReturn(val) {
    val = val - 0;
    callback(val);
    return;
  }
</script>

Test runner

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noReturn(42);

doesReturn(42);

doesValuelessReturn(42);

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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 Alexis Deveria on 17th September 2010
• Revision 3: published on 14th April 2012
• Revision 4: published on 19th December 2012
• Revision 5: published on 19th December 2012
• Revision 6: published by max jooher on 19th December 2012
• Revision 7: published on 20th December 2012
• Revision 8: published by fencliff on 11th January 2013
• Revision 9: published on 28th February 2013 and last updated on 1st March 2013

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