How to get the last date in the month of a date in JavaScript

In this Article we will go through how to get the last date in the month of a date 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 getLastDate = (d = new Date()) => new Date(d.getFullYear(), d.getMonth() + 1, 0);