Javascript

Understanding Default Parameters in JavaScript — step-by-step Javascript tutorial on Progressive Robot

Understanding Default Parameters in JavaScript

In ECMAScript 2015, default function parameters were introduced to the JavaScript programming language. These allow developers to initialize a function with default values if the arguments are not supplied to the function call. Initializing function parameters in this way will make your functions easier to read and help you avoid errors caused by undefined arguments and the destructuring of objects that don’t exist. In this article, you will learn how to use default parameters.

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