How to get the file name from a url in JavaScript

In this Article we will go through how to get the file name from a url 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 fileName = url => url.substring(url.lastIndexOf('/') + 1);

fileName('http://domain.com/path/to/document.pdf');     // 'document.pdf'