UUID golf

JavaScript performance comparison

Revision 10 of this test case created by

Preparation code


      
      <script>
Benchmark.prototype.setup = function() {
  build = function(a,b){for(b=a='';a++<24;b+=~a%5|a*3&4?(a^15?8^Math.random()*(a^20?16:4):4).toString(16):'-');return b+((new Date().valueOf()*(~~(Math.random()+1)*16)).toString(16))}
  
  build2 = function b(a){return a?(a^Math.random()*16>>a/4).toString(16):([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g,b)}
  
  replace = function b(a){return a?(a^Math.random()*16>>a/4).toString(16):([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g,b)}
  
  another = function(){return"00000000-0000-4000-8000-000000000000".replace(/0/g,function(){return(0|Math.random()*16).toString(16)})}
  
  sub = function () {
  var s=function(){return (((1+Math.random())*0x10000)|0).toString(16).substring(1);},r=[8,9,"a","b"]
  return (s()+s()+"-"+s()+"-4"+s().substr(0,3)+"-"+r[Math.floor(Math.random()*4)]+s().substr(0,3)+"-"+s()+s()+s())
  }

};
</script>

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
build()
build()
pending…
replace()
replace()
pending…
another()
another()
pending…
sub()
sub()
pending…

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