A JavaScript function is a block of code designed to perform a particular task. A JavaScript function is executed when "something" invokes it (calls it).

Mar 22, 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 …

Apr 15, 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 …

Oct 14, 2022 · A function is an action, so function names are usually verbal. There exist many well-known function prefixes like create… , show… , get… , check… and so on. Use them to …

Jul 15, 2024 · The Function object provides methods for functions. In JavaScript, every function is actually a Function object.

When calling a function, JavaScript executes the code inside the function body. For example, the following shows how to call the say() function: say( 'Hello' ); Code language: JavaScript ( …

JavaScript References. W3Schools maintains a complete JavaScript reference, including all HTML and browser objects. The reference contains examples for all properties, methods and …

A function is an independent block of code that performs a specific task. A function expression is a way to store functions in variables. In this tutorial, you will learn about JavaScript functions and …

Jul 11, 2024 · JavaScript Function Examples A function in JavaScript is a set of statements that perform a specific task. It takes inputs, and performs computation, and produces output.

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