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September 16, 2018 18:07
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An experimental virtual dom/jsx renderer.
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| /** @jsx hype */ | |
| function render(root, el) { | |
| while (root.lastChild) { | |
| root.removeChild(root.lastChild); | |
| } | |
| root.appendChild(el); | |
| } | |
| function hype(name, attributes, ...children) { | |
| if (typeof name === "function") { | |
| return name(attributes, children); | |
| } | |
| var el = document.createElement(name); | |
| for (var attr in attributes) { | |
| if (attr.startsWith("on") && typeof attributes[attr] === "function") { | |
| el.addEventListener(attr.substr(2).toLocaleLowerCase(), attributes[attr], false) | |
| } else { | |
| el[attr] = attributes[attr]; | |
| } | |
| } | |
| var node; | |
| for (i = 0; i < children.length; i++) { | |
| node = children[i]; | |
| if (typeof node === "function") { | |
| el.appendChild(hype(node)); | |
| } else if (typeof node === "string") { | |
| el.appendChild(document.createTextNode(node)); | |
| } else { | |
| el.appendChild(node); | |
| } | |
| } | |
| return el; | |
| } | |
| function soemthingclciked(e) { | |
| console.log(e); | |
| } | |
| function Foo(props) { | |
| return <div onClick={soemthingclciked}>{props.x}</div>; | |
| } | |
| function App() { | |
| return <div onClick="hello"> | |
| <Foo x="1" /> | |
| <Foo x="2" /> | |
| </div>; | |
| } | |
| { | |
| render(document.getElementById("root"), <App />); | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge"> | |
| <title>Page Title</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| </head> | |
| <body> | |
| <div id="root"></div> | |
| <script src="hype.js"></script> | |
| </body> | |
| </html> |
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Transpiled with buble: buble hype.jsx > hype.js