What type of loops do you use?

There has been a lot talking about loop performance.

So lets's try to find out if there is a difference between loops and loops.

Tested on an original Espruino board so others may differ for the time but not for the result.

VERSION: "2v05",
GIT_COMMIT: "990dac35",
BOARD: "PICO_R1_3",

Test code snipped with for, while and do.

var LOOPS = 1E4;

function forLoop(){
      for (i = 0; i < LOOPS; i++) {
          x = 0;
      }
}

function whileLoop(){
      var i = LOOPS;
      while (i) {
           i--;
      }
}

function doLoop(){
      var i = LOOPS;
      do {
           i--;
      } while(i);
}

function run(f){
      ts = getTime();
      f();
      te = getTime();
      return te - ts;
}

testing:

// result time is in seconds
>run(forLoop) 
=2.67205524444

>run(whileLoop);
=1.25568199157 

>run(doLoop);
=1.31462860107

As a result: Try to use do or while loops instead of for loops , they run nearly twice as long.