How to check if a value is an object in JavaScript

In this Article we will go through how to check if a value is an object 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 isObject = v => (v !== null && typeof v === 'object');

isObject(null);             // false
isObject('hello world');    // false

isObject({});               // true
isObject([]);               // true