Discussion on: Why you should use Array.some instead of 'for' loop or forEach?

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Replies for: Hm, it is a nice introduction to array.some() but I don't think it's completely explained and some might pull wrong conclusions from this. Using "f...

I totally agree with your comment. Plus this is the polyfill for the "some" implementation. Good old for, just sayin...

if (this == null) {
  throw new TypeError('Array.prototype.some called on null or undefined');
}

if (typeof fun !== 'function') {
  throw new TypeError();
}

var t = Object(this);
var len = t.length >>> 0;

for (var i = 0; i < len; i++) {
  if (i in t && fun.call(thisArg, t[i], i, t)) {
    return true;
  }
}

return false;