Created
October 1, 2018 07:23
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Polymer slots and fallback
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| <!doctype html> | |
| <html> | |
| <head> | |
| <script src="https://unpkg.com/@webcomponents/webcomponentsjs@latest/webcomponents-loader.js"></script> | |
| <title>App</title> | |
| </head> | |
| <body> | |
| <script type="module"> | |
| import { LitElement, html } from 'https://unpkg.com/@polymer/lit-element@latest/lit-element.js?module'; | |
| class MyApp extends LitElement { | |
| constructor () { | |
| super(); | |
| }; | |
| static get properties () { return { | |
| msg: { | |
| type: String, | |
| }, | |
| color: { | |
| type: String, | |
| }, | |
| }}; | |
| render () { | |
| const { color } = this; | |
| return html` | |
| <style> | |
| span { | |
| color: ${this.color}; | |
| } | |
| </style> | |
| <h1><slot name="greeting">Hi</slot> <span>${this.msg}</span>!</h1> | |
| <slot><slot> | |
| `; | |
| }; | |
| }; | |
| window.customElements.define('my-app', MyApp); | |
| </script> | |
| <my-app msg="world" color="red"> | |
| <span slot="greeting">Hello</span> | |
| <p>Lorem ipsum dolor sit amet consectetur adipisicing.</p> | |
| </my-app> | |
| </body> | |
| </html> |
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