JavaScript Constructor Learning Notes

Source: Internet
Author: User
Tags uppercase letter

We all know that in JavaScript everything is the object, then the question comes, what is the object??

A: An object is an instance of a particular reference type.

So how do new objects build??

A: The new object is followed with a constructor Function to create the.

The constructor itself is a function, except that the function is defined for the purpose of creating a new object.

So let's just create an example of an object look at it ~ ~

1 var New Object ();

This line of code creates a new instance of object and saves it in the variable person, using a constructor that is obnject.

So we're customizing a constructor?

var New Person ();

Have you found that the person is capitalized in the first letter of the object? That's not a coincidence. The constructor should always start with an uppercase letter.

The big uncle shouted people ... Go back to writing ...

JavaScript Constructor Learning Notes

Related Article

E-Commerce Solutions

Leverage the same tools powering the Alibaba Ecosystem

Learn more >

Apsara Conference 2019

The Rise of Data Intelligence, September 25th - 27th, Hangzhou, China

Learn more >

Alibaba Cloud Free Trial

Learn and experience the power of Alibaba Cloud with a free trial worth $300-1200 USD

Learn more >

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: and provide relevant evidence. A staff member will contact you within 5 working days.