73dd374a3e
We are now able to attach "side effects" to property value changes, from inside the component and outside.
58 lines
1.4 KiB
HTML
58 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>WC demo</title>
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<style>
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* {
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font-size: larger;
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}
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</style>
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<script type="module">
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import WebComponent from "https://unpkg.com/web-component-base@1.13.3/WebComponent.min.js";
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/**
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* @see https://ayco.io/n/web-component-base
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*/
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class Counter extends WebComponent {
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static properties = ["count"];
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onInit() {
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this.props.count = 0;
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this.onclick = () => ++this.props.count;
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}
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onChanges(changes) {
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console.log(changes);
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// now click the button & check your devtools console
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}
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get template() {
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return `<button>${this.props.count}</button>`;
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}
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}
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class Toggle extends WebComponent {
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static properties = ["toggle"];
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onInit() {
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this.props.toggle = false;
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this.onclick = () => (this.props.toggle = !this.props.toggle);
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}
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get template() {
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return `<button>${this.props.toggle ? "On" : "Off"}</button>`;
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}
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}
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customElements.define("my-counter", Counter);
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customElements.define("my-toggle", Toggle);
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</script>
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</head>
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<body>
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<div>
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Counter:
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<my-counter />
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</div>
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<div>
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Toggle:
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<my-toggle />
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</div>
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</body>
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</html>
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