Ternary vs Switch vs If

JavaScript performance comparison

Revision 3 of this test case created

Info

Testing which is faster, ternary, switch, if, if else if, or if else if else.

Preparation code

 
<script>
Benchmark.prototype.setup = function() {
    var a = Math.floor(Math.random()*4), t;
};

Benchmark.prototype.teardown = function() {
    a = Math.floor(Math.random()*4);
};
</script>

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Testing in unknown unknown
Test Ops/sec
Terary
t = (a == 1 ? 1 : a == 2 ? 2 : 3);
pending…
Switch
switch (a) {
case 1:
  t = 1;
  break;
case 2:
  t = 2;
  break;
case 3:
  t = 3;
  break;
}
pending…
If
if (a == 1) t = 1;
if (a == 2) t = 2;
if (a == 3) t = 3;
pending…
if else if
if (a == 1) t = 1;
else if (a == 2) t = 2;
else if (a == 3) t = 3;
pending…
if else if else
if (a == 1) t = 1;
else if (a == 2) t = 2;
else t = 3;
pending…

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