104 lines
2.9 KiB
Markdown
104 lines
2.9 KiB
Markdown
# How To >> Get Started ||10
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## Technologies Used
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Lion Web Components aims to be future proof and use well-supported proven technology. The stack we have chosen should reflect this.
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Checkout the documentation of our main stack.
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- [lit](https://lit.dev/) - Building on top of the Web Components standards, Lit adds just what you need to be happy and productive: reactivity, declarative templates and a handful of thoughtful features to reduce boilerplate and make your job easier.
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- [modern-web](https://modern-web.dev) - Guides, tools and libraries for modern web development.
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- [open-wc](https://open-wc.org) - Open Web Components provides guides, tools and libraries for developing web components.
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## How to get started
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Make sure you have `npm`, if you don't have it yet: [get npm](https://www.npmjs.com/get-npm).
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And create a repo, we suggest to use [the generator from open-wc](https://open-wc.org/docs/development/generator/):
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```bash
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npm init @open-wc
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```
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### Install lion packages
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To get started with consuming lion's UI components install package `@lion/ui` as follows:
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```bash
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npm i @lion/ui
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```
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You can install lion's ajax package with:
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```bash
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npm i @lion/ajax
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```
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You can install lion's singleton-manager package with:
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```bash
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npm i --save singleton-manager
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```
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### Extend a Web Component
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**This is the main use case for lion**. To import component classes, and extend them for your own design system's components.
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```js
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import { css } from 'lit';
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import { LionInput } from '@lion/ui/input.js';
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class MyInput extends LionInput {
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static get styles() {
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return [
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...super.styles,
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css`
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/* your styles here */
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`,
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];
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}
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}
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customElements.define('my-input', MyInput);
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```
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### Use a JavaScript system
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There's a couple of "systems" in lion which have a JavaScript API. Examples are `localize`, `overlays`, `ajax`, etc.
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```html
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<script type="module">
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import { ajax } from '@lion/ajax';
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ajax
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.fetch('data.json')
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.then(response => response.json())
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.then(data => {
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// do something with the data
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});
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</script>
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```
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### Use a Web Component
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You can also use the lion elements directly, although this is likely not a common use case.
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```html
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<script type="module">
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import '@lion/ui/define/lion-input.js';
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</script>
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<lion-input name="firstName" label="First name"></lion-input>
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```
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### Code Completion for VS Code
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The @lion/ui package includes a file named vscode.html-custom-data.json that allows you to define custom elements to be recognized by Visual Studio Code. This enables code completion for @lion/ui components. To activate this feature, follow these steps after having installed `@lion/ui`:
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1. Navigate to the root of your project
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2. Add the following to root level of object in file `.vscode/settings.json` (create file if it doesn't exist):
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```json
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"html.customData": ["./node_modules/@lion/ui/vscode.html-custom-data.json"]
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```
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3. Restart your Visual Studio Code for the changes to take effect.
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