In addition to Weibo, there is also WeChat
Please pay attention
WeChat public account
Shulou
2025-04-05 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
Share
Shulou(Shulou.com)06/03 Report--
This article mainly explains "the introduction of the characteristics of JS facing the object". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "the introduction of the characteristics of JS facing objects".
Object-oriented features: encapsulation, inheritance, polymorphism
Packaging: it is packaging.
A value is stored in a variable-- encapsulation
A piece of repetitive code is put in a function-- encapsulation.
A series of attributes are placed in an object-- encapsulation
Some functions (methods) with similar functions are placed in an object-- encapsulation
Many similar objects are placed in a js file-encapsulation
Inheritance:
First of all, inheritance is a kind of relationship, the relationship between class and class, there is no class in JS, but you can simulate the class by constructor, and then realize inheritance through prototype.
Inheritance is also for data sharing, and inheritance in js is also for data sharing.
One of the prototype functions: data sharing, saving memory space
The second part of the prototype function: in order to realize inheritance
Inheritance is a relationship:
Relationship between parent class level and subclass level
Polymorphism:
An object has different behaviors, or the same behavior produces different results for different objects. If you want to have polymorphism, you must first have inheritance. Polymorphism can be simulated in js, but it will not be used or modeled.
Conclusion: the above is all about advanced JS-- inheritance, please pay attention to more.
Thank you for your reading, the above is the content of "introduction to the characteristics of JS facing objects". After the study of this article, I believe you have a deeper understanding of the introduction of the characteristics of JS facing objects, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!
Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.
Views: 0
*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.
Continue with the installation of the previous hadoop.First, install zookooper1. Decompress zookoope
"Every 5-10 years, there's a rare product, a really special, very unusual product that's the most un
© 2024 shulou.com SLNews company. All rights reserved.