Created
September 12, 2023 02:08
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Web Components. https://gomakethings.com/sotb/
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<title>Web Components</title> | |
<meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
<style type="text/css"> | |
body { | |
margin: 0 auto; | |
max-width: 40em; | |
width: 88%; | |
} | |
</style> | |
</head> | |
<body> | |
<h1>Counter Button</h1> | |
<counter-button></counter-button> | |
<counter-button></counter-button> | |
<counter-button></counter-button> | |
<script> | |
customElements.define('counter-button', class extends HTMLElement { | |
/** | |
* The class constructor object | |
*/ | |
constructor () { | |
// Always call super first in constructor | |
super(); | |
// Track the count | |
this.count = 0; | |
// Render HTML | |
this.innerHTML = | |
`<button>Clicked ${this.count} Times</button>`; | |
} | |
/** | |
* Runs each time the element is appended to or moved in the DOM | |
*/ | |
connectedCallback () { | |
let instance = this; | |
this.addEventListener('click', function () { | |
instance.count++; | |
instance.firstElementChild.textContent = `Clicked ${this.count} Times`; | |
}); | |
} | |
}); | |
</script> | |
</body> | |
</html> |
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