The understanding _javascript technique of the static attribute and the instance attribute of JS class

Source: Internet
Author: User
Tags define prototype
Copy code code as follows:

<meta http-equiv= "Content-type" Content= "text/html; Charset=utf-8 ">
<title> Test </title>
<body>
<script type=" text/ JavaScript ><!--
Function Man (name, age) {
///Define instance property
THIS.name = name;
This.age = age;
}

//define static properties. The default sex is male, do not rule out degeneration, ^v^
Man.sex = ' male ';
//Define prototype properties
Man.prototype.phone = ' 123456 ';
//Except Name.sex and Man.prototype.phone all remaining undefined
alert (man.sex + "-----" + Man.prototype.phone + "--" + Man.name + "--" + Man.age + "--" + man.phone);
var mans = new Man ("Tom", 24);
Alert (Man.sex +)--"+ Man.name +"--"+ Man.age +"--"+ Man.phone"; The
/**
* Illustrates by example that a prototype property is instantiated as an instance property of a class.
* But instance properties cannot be used as prototype properties after instantiation.
*/

//--></script>
</body>

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.