This works with array-like objects which aren't arrays. It's important if you want to support older browsers which don't implement NodeList.forEach(). Well, it'

This works with array-like objects which aren't arrays. It's important if you want to support older browsers which don't implement NodeList.forEach(). Well, it's really just for old IE. If you're targeting modern browsers this is no longer an issue, as they all support NodeList.forEach(). It's worth noting that many DOM APIs return live collections, so depending on what you're doing you might want to clone it first. Luckily now with ES2015 you can use Array.from(list) or just [...list].