Check If Array Is Empty In JavaScript

Here is a quick code snippet you can use in your projects to check if an array is empty.

const isNotEmpty = arr => Array.isArray(arr) && arr.length > 0;
isNotEmpty([1, 2, 3]); // Result: true
isNotEmpty([]); // Result: false

isNotEmpty

If you like you can create the opposite helper function to check if the array is empty.

const isEmpty = arr => Array.isArray(arr) && arr.length === 0;
isEmpty([1, 2, 3]); // Result: false
isEmpty([]); // Result: true

isEmpty