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Question 6 How to empty an array in JavaScript? For instance, var arrayList = ['a', 'b', 'c', 'd', 'e', 'f']; How can we empty the array above? There are a couple ways we can use to empty an array, so let's discuss them all. JavaScript Interview Questions: Arrays. May 16, 2020. Originally published by Javin Paul on April 28th 2019 54,715 reads. Use the slice method. JavaScript is the official language of all modern web browsers. What is the difference between undefined and not defined in JavaScript? Question 1: 3. Event delegation allows us to attach a single event listener, to a parent element, that will fire for all children matching a selector, whether those children exist now or are added in the future. This article will discuss some of the most frequently asked questions in JavaScript with the intention of helping readers overcome any confusion they may have around this language. Thus, when you set the value of the 100th index, the array looks like:. We’ll provide feedback on your answers, and you can use a hint if you get stuck. js project began in 2009 as a JavaScript environment decoupled from the browser, it is using Google’s V8 and Marc Lehmann’s libev, node.

Javascript Interview Coding Questions