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Legal Studies我们可以在数组中在 JavaScript 对象之间共享一个方法吗？
以下是用于在数组中的对象之间共享一个方法的代码 −
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 {
font-size: 18px;
font-weight: 500;
color: rebeccapurple;
}
</style>
</head>
<body>
<h1>Share a method between objects in an array</h1>
<div class="result"></div>
<button class="Btn">CLICK HERE</button>
<h3>Click on the above button to call welcome() method of all person objects</h3>
<script>
let resEle = document.querySelector(".result");
function Person(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
Person.prototype.welcome = function () {
return "Welcome " + this.firstName + " " + this.lastName;
};
let obj = [
new Person("Rohit", "Sharma"),
new Person("Shawn", "Mendes"),
new Person("Michael", "Clarke"),
];
document.querySelector(".Btn").addEventListener("click", () => {
obj.forEach((item) => {
resEle.innerHTML += item.welcome() + "";
});
});
</script>
</body>
</html>输出
上面的代码将产生以下输出 −
点击“在此处单击”按钮后 −
更新于： 18-Jul-2020
97 Views
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