@microsoft/fast-foundation
Advanced tools
The fast-foundation package is a library of Web Component classes, templates, and other utilities intended to be composed into registered Web Components by design systems (e.g. Fluent Design, Material Design, etc.). The exports of this package can generally be thought of as un-styled base components that implement semantic and accessible markup and behavior.
This package does not export Web Components registered as custom elements - it exports parts and pieces intended to be composed into Web Components, allowing you to implement your own design language by simply applying CSS styles and behaviors without having to write all the JavaScript that's involved in building production-quality component implementations.
To install the fast-foundation library, use either npm or yarn as follows:
npm install --save @microsoft/fast-foundation
yarn add @microsoft/fast-foundation
Within your JavaScript or TypeScript code, you can then import library APIs like this:
import { Anchor } from '@microsoft/fast-foundation';
Looking for a setup that integrates with a particular front-end framework or bundler? Check out our integration docs.
A pre-bundled script that contains all APIs needed to use FAST Foundation is available on CDN. You can use this script by adding type="module" to the script element and then importing from the CDN.
<!DOCTYPE html>
<html lang="en">
<head>
<script type="module">
import { Anchor } from "https://cdn.jsdelivr.net/npm/@microsoft/fast-foundation/dist/fast-foundation.min.js";
// your code here
</script>
</head>
<!-- ... -->
</html>
The markup above always references the latest release. When deploying to production, you will want to ship with a specific version. Here's an example of the markup for that:
<script type="module" src="https://cdn.jsdelivr.net/npm/@microsoft/fast-foundation@2.26.2/dist/fast-foundation.min.js"></script>
:::note For simplicity, examples throughout the documentation will assume the library has been installed from NPM, but you can always replace the import location with the CDN URL. :::
FAQs
A library of Web Component building blocks
We found that @microsoft/fast-foundation demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 7 open source maintainers collaborating on the project.
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