Convert NodeList to Array
Now that most browsers have implemented querySelectorAll, the native selectorEngine, many framework-dependent developers are getting a rude awakening when dealing with the result of QSA calls: the NodeList object. NodeLists are array-like but don’t feature many of the methods provided by the Array, like forEach, map, filter, etc. JavaScript does, however, provide a very simple way to convert NodeLists to Arrays:
var nodesArray = Array.prototype.slice.call(document.querySelectorAll("div"));The result of the code above is a true Array object containing all of the nodes returned by the QSA. You could even make the code shorter with this alternative:
var nodesArray = [].slice.call(document.querySelectorAll("div"));Both snippets will give you an Array for which you can iterate over and do all those other awesome array things!
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