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法律研究如何在 JavaScript 中覆盖派生属性？
以下是 JavaScript 中覆盖派生属性的代码 −
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>Override derived properties</h1>
<div class="sample">Before overriding <br /></div>
<br />
<div class="result">After overriding <br /></div>
<br />
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to override the above properties</h3>
<script>
let sampleEle = document.querySelector(".sample");
let resEle = document.querySelector(".result");
let BtnEle = document.querySelector(".Btn");
let objPerson = {name: "Rahul",age: 12,class: 7,};
let Person1 = Object.create(objPerson);
sampleEle.innerHTML += "Person1.name = " + Person1.name + "<br>";
sampleEle.innerHTML += "Person1.age = " + Person1.age + "<br>";
sampleEle.innerHTML += "Person1.class = " + Person1.class + "<br>";
BtnEle.addEventListener("click", () => {
Person1.name = "Shawn";
Person1.age = 18;
Person1.class = 12;
resEle.innerHTML += "Person1.name = " + Person1.name + "<br>";
resEle.innerHTML += "Person1.age = " + Person1.age + "<br>";
resEle.innerHTML += "Person1.class = " + Person1.class + "<br>";
});
</script>
</body>
</html>输出
单击“单击此处”按钮 −
更新于：16-7-2020
301 次浏览
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