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Today, the editor will share with you the relevant knowledge points about how to achieve Javascript inheritance relationship, with detailed content and clear logic. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Description

1. Inheritance relationships in JavaScript are implemented through a pattern called "prototype chain".

2. When discussing inheritance, Javascript has only one structure: an object. Each instance object (object) has a private property (_ _ proto__) that points to the prototype object (prototype) of its constructor. This prototype object also has its own prototype object (_ _ proto__) until the prototype object of the object is empty. Null by definition, null does not have a prototype and is the last connection to that prototype chain.

Example

Objectname. [[prototype]] objectname.prototypeobjectname ["_ _ proto__"] objectname.__proto__objectname.constructor.prototype above is all the content of this article "how to implement Javascript inheritance relationship". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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