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This article mainly shows you "how to achieve ES6 class grammar", the content is easy to understand, clear, hope to help you solve your doubts, the following let the editor lead you to study and learn "how to achieve ES6 class grammar" this article.

Implement the class syntax of ES6

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The class of ES6 is based on parasitic combinatorial inheritance, which is the most ideal inheritance method at present. Create an empty object through the Object.create method, inherit the parameters of the Object.create method, and then make the prototype object of the subclass (subType) equal to the empty object, so that the prototype of the subclass instance is equal to the empty object, and the prototype of the empty object is equal to the inheritance relationship of the parent class prototype object (superType.prototype).

While Object.create supports the second parameter, that is, defining properties and property descriptors / accessor descriptors for the generated empty object, we can define a constructor property for this empty object that is more consistent with the default inheritance behavior, and it is an internal property that cannot be enumerated (enumerable:false).

ES6's class allows subclasses to inherit static methods and static properties of parent classes, while ordinary parasitic combined inheritance can only achieve inheritance between instances. Additional methods are needed for class-to-class inheritance. Here, Object.setPrototypeOf is used to set superType as the prototype of subType, so static methods and static properties can be inherited from the parent class.

The above is all the contents of the article "how to implement ES6's class Grammar". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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