Definition

A function declaration defines a named function. The function can be called before it is defined due to hoisting.

Syntax

function functionName(parameters) {
    // Function body
}

Example

function greet(name) {
    return `Hello, ${name}!`;
}

// Calling the function
console.log(greet('Prathamesh')); // Output: Hello, Prathamesh!

Use Cases

• Global Utility Functions: Functions that you want to use throughout your code and can be defined once, such as utility functions or helper functions.
• Hoisting: Function declarations are hoisted, meaning you can call them before their actual declaration in the code.