The example in this article describes the implementation of the prototype attribute in Javascript to add new methods to built-in objects. Share it with everyone for your reference. The specific implementation method is as follows:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>prototype属性使用(给内置对象添加新的方法，方便调用)</title>
<script type="text/javascript">
function getMaxFunc() {
var max = this[0];
for (var i in this) {
if (max < this[i]) {
max = this[i];
}
}
return max;
}
Array.prototype.getMax = getMaxFunc;
//Array是Javascript的内置对象，这里使用prototype定义一个新的方法getMax
var myArr = [3, 5, 6, 7, 9];
var max = myArr.getMax();
//这里就可以直接使用myArr.getMax了,像使用内置对象的方法一样使用
alert("max=" + max);
</script>
</head>
<body>
</body>
</html>I hope this article will be helpful to everyone’s JavaScript programming design.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
