performance-tuning-$6.lzx

<canvas height="150" width="100%">
    <include href="utils/performance"/>
    <script>
      var iterations = Measurement.defaultIterations;
      var a = false;
      var b = true;
      var c = true;
      function empty () {
        for (var i = 0; i < iterations; i++) {
          if (a == false) {};
        }
      }

      function measureLogicalAnd () {
        for (var i = 0; i < iterations; i++) {
          if (a && b && c) {}
        }
      }

      function measureIfProduct () {
        for (var i = 0; i < iterations; i++) {
          if (a) {
            if (b) {
              if (c) {}
            }
          }
        }
      }

      var d = true;
      var e = false;
      var f = false;
      function measureLogicalOr () {
        for (var i = 0; i < iterations; i++) {
          if (d || e || f) {}
        }
      }

      function measureIfSum () {
        for (var i = 0; i < iterations; i++) {
          if (c) {}
          else if(d) {}
          else if (e) {}
        }
      }

      (new Measurement({'Logical And': measureLogicalAnd,
                        'If Product': measureIfProduct,
                        'Logical OR':  measureLogicalOr,
                        'If Sum': measureIfSum,
                        'empty': empty})).run();
    </script>
  </canvas>
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