Declaration, Anonymous, and Arrow Functions in JavaScript
In JavaScript, functions are blocks of code that can be reused. They can be declared in different ways: using the function keyword, as anonymous functions, or through arrow functions.
Syntax:
Functions can be declared in the following ways:
- Function declaration: function followed by the name and the code block.
- Anonymous function: A function without a name that is generally used in expressions.
- Arrow Functions Using the arrow syntax `() => `.
Examples:
- Function declaration:
function saludar() { console.log("¡Hola!"); } - Anonymous function:
const saludo = function() { console.log("¡Hola!"); } - Arrow function:
const saludar = () => { console.log("¡Hola!"); }
Purpose:
- Allow code blocks to be reused.
- Define specific logic or behaviors in the code.
- Facilitate the creation of simple and quick functions using arrows.
Exercises
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JavaScript Concepts and Reference
Functions
Objects in JavaScript
Arrays
DOM (Document Object Model)
Error Handling
Promises and Asynchronicity
Modules in JavaScript
ES6 and Advanced Features
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