MASTERING JAVASCRIPT FUNCTIONS: THE ULTIMATE GUIDE TO DECLARATIONS, EXPRESSIONS, ARROW FUNCTIONS & IIFE
In JavaScript, functions are fundamental building blocks that enable code to be reusable, modular, and more readable. Let's dive into each type of function in JavaScript: 1.Function Declaration: A function declaration defines a named function and is hoisted, meaning it can be called before it is defined in the code. Syntax: javascript function functionName(parameters) { // Code to execute } ``` Example: javascript Copy code 👇👇👇 function greet(name) { return `Hello, ${name}!`; } console.log(greet("Alice")); This is the output 👇👇👇 // Output: Hello, Alice! ``` Key Points: - Hoisted, so can be called before declaration. - Useful for defining reusable code blocks. 2. Function Expression: In a function expression, the function is assigned to a variable. Unlike function declarations, function expressions are not hoisted. Syntax: javascript const functionName = function(parameters) { // Code to execute }; ``` Example: javascript Copy code 👇👇👇 const greet =
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