Forked from kristoferjoseph/single-file-web-component.html
Created
September 6, 2022 23:21
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Single file Web Component
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Single File Web Component</title> | |
| </head> | |
| <body> | |
| <template id=single-file> | |
| <style> | |
| h1 { | |
| color: red; | |
| } | |
| </style> | |
| <h1>Hello World</h1> | |
| <script type=module> | |
| class HelloWorld extends HTMLElement { | |
| constructor () { | |
| super() | |
| const template = document.getElementById('single-file') | |
| this.attachShadow({ mode: 'open' }) | |
| .appendChild(template.content.cloneNode(true)) | |
| } | |
| connectedCallback () { | |
| console.log('Why hello there 👋') | |
| } | |
| } | |
| customElements.define('hello-world', HelloWorld) | |
| </script> | |
| </template> | |
| <hello-world></hello-world> | |
| <script> | |
| const sf = document.getElementById('single-file') | |
| document.body.appendChild(sf.content.lastElementChild) | |
| </script> | |
| </body> | |
| </html> |
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