Try/Catch Error Perf

JavaScript performance comparison

Revision 16 of this test case created by unfo-

Preparation code

  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;

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Try Catch
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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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