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This article mainly introduces "what are the advantages of js construction inheritance". In daily operation, I believe many people have doubts about the advantages of js construction inheritance. The editor consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "what are the advantages of js construction inheritance?" Next, please follow the editor to study!

The main contents are as follows: 1. The problem that the subclass instance of the prototype chain inherits the reference attribute of the parent class is solved. Using the parent class structor to enhance the subclass instance is equivalent to copying the instance properties of the parent class to the subclass.

2. When creating an instance of a subclass, you can pass parameters to the parent class.

3. Multi-inheritance can be realized (call multi-parent objects).

Example

Function Cat (name) {Animal.call (this); this.name = name | | 'Tom';} var cat = new Cat (); console.log (cat.name); / / Tomcat.sleep () / / Tom is sleeping! Console.log (cat instanceof Animal); / / falseconsole.log (cat instanceof Cat); / / true at this point, the study on "what are the advantages of js construction inheritance" is over, hoping to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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