Why Functions? Functions enable better code organization and efficiency. With functions you can reuse code. You can write code that can be used many times. You can use the same code with different …

Jul 8, 2025 · A function in JavaScript is similar to a procedure—a set of statements that performs a task or calculates a value, but for a procedure to qualify as a function, it should take some input and …

Sep 13, 2025 · Functions in JavaScript are reusable blocks of code designed to perform specific tasks. They allow you to organize, reuse, and modularize code. It can take inputs, perform actions, and …

JavaScript Functions Summary: in this tutorial, you will learn about JavaScript functions and how to use them to structure the code into smaller and more reusable units.

Want to learn all about JavaScript functions? Learn how to write a function, how to use it, and why you should use them in your JavaScript code today!

Learn what are functions in JavaScript. Explore the basics of functions in JavaScript, including anonymous and arrow functions, and learn how to organize your code using functions.

JavaScript functions are defined with the function keyword. You can use a function declaration or a function expression.