Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

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 …

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. When developing an application, you …

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 …

In JavaScript, the return statement ends function execution and specifies a value to be returned to the function caller. add is a function that takes two parameters, a and b, and returns their sum. …

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.

Oct 14, 2022 · We’ve already seen examples of built-in functions, like alert(message), prompt(message, default) and confirm(question). But we can create functions of our own as …