在 JavaScript 中,我们是否可以使用解构为对象分配新属性?
以下是使用 JavaScript 中的解构为对象分配新属性的代码,如下所示
示例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<style>
body {
font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}
.result,.sample {
font-size: 18px;
font-weight: 500;
color: rebeccapurple;
}
.result {
color: red;
}
</style>
</head>
<body>
<h1>Assign new property to an object using deconstruction</h1>
<div class="sample">{"a":11,"b":22,"c":44}</div>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to assign values to obj by destructuring above object</h3>
<script>
let resEle = document.querySelector(".result");
let obj = {};
let obj1 = {
a: 11,
b: 22,
c: 44,
};
({ a: obj.a, b: obj.b, c: obj.c } = obj1);
document.querySelector(".Btn").addEventListener("click", () => {
for (let i in obj) {
resEle.innerHTML += "key = " + i + " : Value = " + obj[i] + "";
}
});
</script>
</body>
</html>输出
以上代码将产生如下输出:

单击“点击这里”按钮后:

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