String Switch vs. If

Benchmark created on March 21, 2011

Preparation HTML

<script>
  function mk() {
   var cnt = 0;
   return function() {
    var x = cnt++ % 2;
    switch (x) {
    case 0:
     return "a";
    case 1:
     return "b";
    }
   };
  }
  
  var g = mk();
  var g1 = mk();
  
  var a = 0;
  var b = 0;
  var c = 0;
  var a1 = 0;
  var b1 = 0;
  var c1 = 0;
</script>

Test runner

var x = g();
if (x == "a") {
 a++;
} else if (x == "b") {
 b++;
}

var x = g1();
switch (x) {
case "a":
 a1++;
 break;
case "b":
 b1++;
 break;
}

Revisions

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

• Revision 1: published on March 21, 2011