Try/Catch Error Perf

JavaScript performance comparison

Revision 54 of this test case created by jdavid

Preparation code

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

  function ifCheck(undef) {
    if (undef !== undefined) {
      return undef.prop;
    } else {
      return null;
    }
  }

 function ifCheckTypeOf(undef) {
    if (typeof undef != 'undefined') {
      return undef.prop;
    } else {
      return null;
    }
  }

  function tryPerf(undef) {
    try {
      if (undef !== undefined) {
        return undef.prop;
      } else {
        return null;
      }
    } catch (ex) {
      return null;
    }
  }
</script>

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Testing in unknown unknown
Test Ops/sec
Try Catch
tryCatch();
pending…
If Check
ifCheck();
pending…
If Check TypeOf
ifCheckTypeOf();
pending…
Try performance
tryPerf();
pending…

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