@kickscondor/umbrellajs/src/plugins/slice/slice.js

Lightweight and intuitive javascript library

// [INTERNAL USE ONLY]

// Force it to be an array AND also it clones them
// http://toddmotto.com/a-comprehensive-dive-into-nodelists-arrays-converting-nodelists-and-understanding-the-dom/
u.prototype.slice = function (pseudo) {
  // Check that it's not a valid object
  if (!pseudo ||
      pseudo.length === 0 ||
      typeof pseudo === 'string' ||
      pseudo.toString() === '[object Function]') return [];

  // Accept also a u() object (that has .nodes)
  return pseudo.length ? [].slice.call(pseudo.nodes || pseudo) : [pseudo];
};