Date: 2017nov17 Language: javaScript Keywords: create, initialize Q. In javaScript when should I use `new Array()` ? A. To create an empty array you can do:

let a = new Array(); let a = new Array; let a = []; // BEST

The last one is the most compact so I prefer it. If you want to create an array of known size, there is only one way:

let a = new Array(100);

So this is when to use `new Array`.