JavaScript provides many built-in functions such as alert () and console.log () If we have a few lines of code that need to be used multiple times, we can create a function that contains the repeating lines of code and then call the function wherever we want. Recommended Articles. Functions are the main “building blocks” of the program. JavaScript functions do not perform type checking on the passed arguments. Recommended Articles. Summary: in this tutorial, you will learn about JavaScript anonymous functions. Parameters can be of any type number, string, object, array, etc, and even the function. At the end of this article, you will understand what are JavaScript Functions and when and how to use Functions in JavaScript with examples. Arrow functions have other interesting features. only one function with a specified name can exist in the same scope, In the next article, I am going to discuss. link brightness_4 code