JavaScript modules

JavaScript modules allow code to be organized into reusable units. Modules use import to load other modules and export to declare what is available to import from other modules. In HTML, modules are loaded with <script type="module">.

Learning resources on MDN

• Module, in <script>: type attribute

Browser support (view on caniuse.com)

• Chrome 61 Released on 2017-09-05
• Chrome Android 61 Released on 2017-09-05
• Edge 16 Released on 2017-10-17
• Firefox 60 Released on 2018-05-09
• Firefox for Android 60 Released on 2018-05-09
• Safari 11 Released on 2017-09-19
• Safari on iOS 11 Released on 2017-09-19

View web-platform-tests results for this feature - View the feature source file - Edit the feature - Report an issue about this feature