How do I create functions in JavaScript?

How do I create functions in JavaScript?

To create a function in JavaScript, you can use the function keyword followed by the function name and parentheses. For example:

function myFunction() {
    console.log('Hello, World!');
}

What are the different ways to define a function?

There are several ways to define functions in JavaScript:

1. Function declarations
2. Function expressions
3. Arrow functions

For example, an arrow function looks like this:

const myFunction = () => {
    console.log('Hello, World!');
};

Can you explain the difference between function declarations and expressions?

Sure! A function declaration is hoisted, meaning it can be called before it's defined. A function expression, however, is not hoisted and can only be called after it's defined.

What about parameters and return values?

You can pass parameters to functions and return values using the return statement. For example:

function add(a, b) {
    return a + b;
}