<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>proxy第一遍</title>
</head>
<body>
<input type="text" id="input" />
<p id="show"></p>
<script>
let obj = {};
const input = document.getElementById('input');
const show = document.getElementById('show');
let newObj = new Proxy(obj, {
set(target, key, value) {
if (key === 'text') {
input.value = value;
show.innerHTML = value;
}
return Reflect.set(target, key, value);
},
get(target, key) {
return Reflect.get(target, key);
}
});
input.addEventListener('keyup', function (e) {
newObj.text = e.target.value;
});
</script>
</body>
</html>
