See: http://careercup.com/question?id=4816567298686976

prime-expressibles.js

//
// See: http://careercup.com/question?id=4816567298686976
//

'use strict';

// var set = [2, 3], n = 8;

// expect: results.exp = [1, 2, 3, 4, 6, 8, 9, 12]
// expect: results.non = [5, 7, 10, 11]
// expect: results.result = 12

var primeExpressibles = function (set, n) {
  if (n < 1) return {exp: [], non: [], result: null};
  if (n === 1) return {exp: [1], non: [], result: 1};
  var results = {exp: [1], non: [], result: 1};
  iteration:
  for (var i = 2; i < set[0] * n; i++) {
    var num = i, j = 0;
    while (set[j] !== undefined) {
      if (!Number.isInteger(num / set[j])) {
        j++; continue; // continue while loop
      }
      num /= set[j];
      if (num === 1) {
        results.exp.push(i);
        if (results.exp.length === n) {
          results.result = i;
          return results;
        }
        continue iteration; // break out of while loop, continue iteration
      }
    }
    results.non.push(i);
  }
  return results; // should never reach this point, in theory...
};

Dude this is gnarly. I've never even seen that iteration property before. What does this do?

Oh never mind I just saw the career cup question

I had never seen it either, pretty cool though, you can specify which loop you want to continue/break.