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//for loop test

function forfunc(args){
  var str = "";
  for(var i=0;i<args.length;i++){
    str += args[i];
  }
  return str;
}

//switch test 0.0009999275207519531
//for test 0.006999969482421875
var i = 0;
var start = (new Date().getTime()/1000);
while (i<10000){
  forfunc(['1', '2', '3', '4']);
  i++;
}
console.log((new Date().getTime()/1000)-start);