Info

this is http://jsperf.com/how-slow-is-eval except not retarded

Preparation code

 
<script>
  Benchmark.prototype.setup = function() {
    function superslow(r) {
      var tot=0;
      for(var i=0;i<10000+r;++i) {
        var x=Math.random();
        if(x<0.5) {
          tot+=Math.sin(x);
        } else {
          tot+=Math.cos(x);
        }
      }
      return Math.sin(tot);
    }
    var superslowstring="function superslow(r){var tot=0;for(var i=0;i<10000+r;++i){var x=Math.random();if(x<0.5){tot+=Math.sin(x);}else{tot+=Math.cos(x);}}return Math.sin(tot);} superslow(Math.random());";
  };
</script>

Test runner

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Java applet disabled.

var x = superslow(Math.random());

var x = eval("superslow(Math.random());");

eval(superslowstring);

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