Home > Developer > JavaScript

A new method for creating javascript objects: Object. create (). javascript creates objects.

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

A new method for creating javascript objects: Object. create (). javascript creates objects.

What is Object. create?
Object. create (proto [, propertiesObject]) is a new object creation method proposed in E5. the first parameter is the prototype to be inherited. If it is not a subfunction, you can pass a null parameter. The second parameter is the object's attribute descriptor. this parameter is optional.
For example:

function Car (desc) {  this.desc = desc;  this.color = "red";} Car.prototype = {  getInfo: function() {   return 'A ' + this.color + ' ' + this.desc + '.';  }};//instantiate object using the constructor functionvar car = Object.create(Car.prototype);car.color = "blue";alert(car.getInfo());

Result:A blue undefined.

1. Detailed description of the propertiesObject parameter: (both are false by default)
Data attributes:

  • Writable: whether the data can be written at will
  • Retriable: can it be deleted or modified?
  • Enumerable: can be used for in enumeration?
  • Value: value

Access attributes:

  • Get (): Access
  • Set (): set

2. Example: You can see how to use it directly.

<!DOCTYPE html>

Result:
100
Yupeng
Yupeng1
201
I am returning: YUPENG
A blue porsche boxter.
A blue XXXXXXXX.
Aaaaaa


The above is a detailed introduction to Object. create (), a new method for creating javascript objects. I hope it will help you learn more.

Articles you may be interested in:

 
    
 
  
  • Introduction to the prototype of JavaScript design patterns (Object. create and prototype)
    • 
 
  
  • Introduction to using Object. create () in JavaScript to create an Object
    •

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
javascript iterate list of objects merge array of objects javascript how to create array of objects in javascript built in objects in javascript filter javascript array of objects javascript array remove duplicate objects javascript print array of objects

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.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

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

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

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

    Open a Ticket

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

    Learn More