Try/Catch Error Perf

JavaScript performance comparison

Revision 16 of this test case created by unfo-

Preparation code

<script>
  function tryCatch(undef) {
    try {
      return undef.prop;
    } catch (ex) {
      return null;
    }
  }

  function ifCheck(undef) {
    if (undef !== undefined && undef.prop != undefined) {
      return undef.prop;
    } else {
      return null;
    }
  }
</script>

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Testing in unknown unknown
Test Ops/sec
Try Catch
tryCatch({'prop':1});
pending…
If Check
ifCheck({'prop':1});
pending…

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Revisions

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1 comment

Josh commented :

This is broken. ({}).prop === undefined, not null. Test 1 is skipping that check.

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