What are some examples of variables in JavaScript?

Can you give me some examples of variables in JavaScript?

Sure! In JavaScript, variables can be declared using var, let, or const. For example, you can declare a variable like this: let name = 'Alice';.

What’s the difference between var, let, and const?

Great question! var is function-scoped, while let and const are block-scoped. const is used for constants that won’t change.

Can you show me an example of using a variable in a function?

Absolutely! Here’s a simple function:

function greet() {
    let greeting = 'Hello, World!';
    console.log(greeting);
}

This function declares a variable greeting and logs it to the console.

What happens if I try to change a const variable?

If you try to change a const variable, you'll get a TypeError. For example:

const pi = 3.14;
pi = 3.14159; // This will throw an error!