How to import and export a module/library in JavaScript?
Note − To run this example you will need to run a localhost server.
Following is the code for importing and exporting a module/library in JavaScript −
Example
INDEX.html
Live Demo
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.result {
font-size: 18px;
font-weight: 500;
}
</style>
</head>
<body>
<h1>JavaScript Importing and Exporting Modules</h1>
<button class="Btn">IMPORT</button>
<div class="result"></div>
<h3>Click on the above button to import module </h3>
<script src="script.js" type="module"></script>
<script src="sample.js" type="module">
</script>
</body>
</html>script.js
import test from './sample.js';
document.querySelector('.Btn').addEventListener('click',()=>{
test();
})sample.js
let resultEle = document.querySelector(".result");
export default function testImport(){
resultEle.innerHTML = 'Module testImport has been imported';
}Output
The above code will produce the following output −
On clicking the ‘IMPORT’ button −
Published on 15-Jul-2020 16:41:23
