code: function forEach(array, fn) {
      var i = -1,
          len = array.length;
  
      while (++i < len) {
        if (fn(array[i], i) === false) {
          return false;
        }
      }
  
      return true;
    }
docs: Iterates over every element in an array.
  
  @param {Array} array The array.
  @param {Function} fn The function to call on every element, which can return
  false to stop the iteration early.
  @returns {boolean} True if every element in the entire sequence was iterated,
  otherwise false.