Array.map() strange behaviour

Hi, this looks like an Espruino issue - maybe not related to map specifically, but it looks like if you break out of a FOR loop then it's possible the iterator still gets called before it exits?

Changing break for return i will fix it:

var lvls = [65535,54038,47824,39322,32768,26526,183­88,11818,5958],
    halfDiff = 2979; //2958/2
function anaGetKey(samples){
  var keys = samples.map(function(v)  {
    var i;
    var val = v + halfDiff;
    for (i=0; i<lvls.length; i++)    {
      if (lvls[i] < val){
        console.log("found : "+i+" for "+v+" - "+val);
        return i; //<------- here
      }
    }
    console.log(" => return "+i);
    return i;
  });
  console.log(keys);
}
anaGetKey([6000,12000,54000,65000]);

I'm on holiday next week but i've just filed a bug for this at https://github.com/espruino/Espruino/iss­ues/2012 and I'll get on it when I get back