Functions are defined with the function keyword: followed by the function name followed by parentheses ( ) followed by brackets { } The function name follows the naming rules for variables. Optional …

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 …

This tutorial introduces you to JavaScript functions that structure your code into smaller reusable units.

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 …

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. The …

In JavaScript, a function can be defined using the function keyword, followed by the name of a function and parentheses. Optionally, a list of input parameters can be included within the parentheses. The …

A function expression is a way to store functions in variables. In this tutorial, you will learn about JavaScript functions and function expressions with the help of examples.

Mar 31, 2024 · Function declarations consist of the function keyword followed by an identifier, a list of comma-separated parameters enclosed in parentheses, and a block statement called the "function …

JavaScript functions are defined with the function keyword. You can use a function declaration or a function expression. Earlier in this tutorial, you learned that functions are declared with the following …

Jul 8, 2025 · The function declaration creates a binding of a new function to a given name. You can also define functions using the function expression.