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  1. JavaScript Functions - W3Schools

    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). A JavaScript function is defined with …

  2. Functions - JavaScript | MDN - MDN Web Docs

    Mar 22, 2025 · A function definition (also called a function declaration, or function statement) consists of the function keyword, followed by: The name of the function. A list of parameters to …

  3. Functions in JavaScript - GeeksforGeeks

    May 14, 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 …

  4. How To Define Functions in JavaScript - DigitalOcean

    Aug 26, 2021 · In this tutorial, we will learn several ways to define a function, call a function, and use function parameters in JavaScript. Functions are defined, or declared, with the function …

  5. JavaScript Function and Function Expressions (with Examples)

    A function is an independent block of code that performs a specific task, while a function expression is a way to store functions in variables. Here's a quick example of function and …

  6. JavaScript Functions - JavaScript Tutorial

    JavaScript provides many built-in functions such as parseInt() and parseFloat(). In this tutorial, you will learn how to develop custom functions. To declare a function, you use the function …

  7. JavaScript Functions: From Basics to Advanced

    Functions allow us to encapsulate a block of code and reuse it multiple times. Functions make JavaScript code more readable, organized, reusable, and maintainable. In JavaScript, a …

  8. How Functions Work in JavaScript – JS Function Code Examples

    Jan 20, 2023 · In this article, we have covered the basics of functions in JavaScript, including how to define, call, and use them in our codes. With a solid understanding of functions, you can …

  9. JavaScript Function Definitions - W3Schools

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

  10. Functions in JavaScript

    Mar 11, 2023 · In JavaScript, you can define a function using the function keyword, followed by the name of the function and a set of parentheses that can contain parameters (if any). Here’s …

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