<!DOCTYPE html><html lang="en"> ?<head> ???<meta charset="UTF-8" /> ???<meta name="viewport" content="width=device-width, initial-scale=1.0" /> ???<meta http-equiv="X-UA-Compatible" content="ie=edge" /> ???<title>Proxy vue 双向绑定</title> ?</head> ?<body> ???<div id="app"> ?????<h3 id="papagraph"></h3> ?????<input type="text" id="input" /> ???</div> ?</body></html><script> ?const papagraph = document.getElementById(‘papagraph‘); ?const input = document.getElementById(‘input‘); ??const data = { ???text: ‘hello‘ ?} ?const handler = { ???set: function(target, prop, value) { ?????if (prop === ‘text‘) { ???????target[prop] = value ???????papagraph.innerHTML = value ???????return true; ?????} else { ???????return false; ?????} ???} ?} ???const myTest = new Proxy(data, handler); ?input.addEventListener( ???‘input‘, ???e => { ?????myTest.text = e.target.value; ???}, ???false ?) ?</script>
js proxy 代理模拟vue实现数据双向绑定
原文地址：https://www.cnblogs.com/wilsunson/p/10280514.html