How to check if an array is not empty in JavaScript

In this Article we will go through how to check if an array is not empty only using single line of code in JavaScript. This is a one-line JavaScript code snippet that uses one of the most popular ES6 features => Arrow Function.

Let's define this short function:

const isNotEmpty = arr => Array.isArray(arr) && Object.keys(arr).length > 0;

isNotEmpty([]);             // false
isNotEmpty([1, 2, 3]);      // true