JavaScript Modules

Table of Contents

What is Modules

JavaScript modules allow you to break up your code into separate files. This makes it easier to maintain the code-base.

JavaScript modules rely on the import and export statements.

You can export a function or variable from any file.

There are two types of exports: Named and Default.

Let us create a file named person.js, and fill it with the things we want to export.

person.js

export const name = "Jesse";
export const age = 40;

person.js

const name = "Jesse";
const age = 40;

export {name, age};

Let us create another file, named message.js, and use it for demonstrating default export.

You can only have one default export in a file.

const message = () {
const name = "Jesse";
const age = 40;
return name + 'is' + age + ' years old ' ;
};
export default message;