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JavaScript Import and Export Module

JavaScript

When our project gets bigger, we want to divide and modularize our code into smaller pieces in order for easier maintenance.

utils.js

js
/* Test JavaScript Export */
export default function mul(x=1, y=1) {
return x*y
}

main.js

js
import mul from './utils.js'
console.log("Hello")
console.log(mul(10,10));
document.querySelector("#result").textContent = mul(10,10);

index.html

js
<!DOCTYPE html>
<html lang="en">
<head>
<title>Test JavaScript Export/Import</title>
</head>
<body>
<p>Result: <span id="result">...</span></p>
<script type="module" src="utils.js"></script>
<script type="module" src="main.js"></script>
</body>
</html>

developer.mozilla.org/en...les

Code Snippets & Notes by Makzan