How to Set Default Parameter Values in JavaScript

Learn how to add default parameter values to your JavaScript functions for improved flexibility and ease of use. Default parameter values were introduced in ES6 in 2015 and have become widely implemented in modern browsers. Let’s start with a simple example of a function called doSomething that accepts a parameter param1: const doSomething = (param1) => { } To add a default value for param1 in case the function is invoked without specifying a parameter, you can modify the function like this:...