js

pickSome(z) {
    var bool = false;
    var i = 0
    while (bool == false) {
      i++;
      y = z[Math.floor(Math.random() * z.length)];
      if (i > 500) {
        z = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17];
        console.log("500 tries already.  Allowing any skills.");
      }
      if (skLearn[y] != true) {
        skLearn[y] = true;
        bool = true;
        return y;
      }
    }
  }