Info

Here we will test to see if passing values and including the error is faster than throwing an error if one were to happen. In all these tests, an error will not be thrown/passed - to see real-world speeds.

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    var console = console ? console : { "log": function() {} };
    
    function recurse(loops) {
      if (loops >= 0) {
        recurse(--loops);
      } else {
        return 0;
      }
    }
    
    function cjsCallback(loops, callback) {
      if (loops >= 0) {
        cjsCallback(--loops, callback);
      } else {
        callback.call(null, 0);
      }
    }
  };
</script>

Test runner

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

try {
  recurse(10);
} catch(e) {
  console.log(e);
}

var res = recurse(10);
if (res instanceof Error) {
  console.log(res);
}

cjsCallback(10, function back(err, res) {
  if (err === null) {
  } else {
    console.log(err);
  }
});

try { (function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
  return 0;
})()
})()
})()
})()
})()
})()
})()
})()
})()
})()
} catch(e) {
  console.log(e);
}

var res = (function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
(function() {
  return 0;
})()
})()
})()
})()
})()
})()
})()
})()
})()
})();

if (res instanceof Error) {
  console.log(res);
}

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

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