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This article mainly introduces the relationship of js prototype chain inheritance, which is very detailed and has certain reference value. Friends who are interested must read it!

1. The constructor has a prototype object, which has a pointer to the structure function, and each instance has an internal pointer to the prototype object.

2. Father assigns an instance to the prototype object of Children through new, so that Children inherits Father.

Example

/ / parent constructor function Father () {this.name = "father" this.house = "cottage"} / / prototype method Father.prototype.alertName = function () {console.log (this.name)} / / create instance let f = new Father () f.alertName () / / father / / child constructor function Children () {this.name = "children"} / / implement inheritance: child constructor Prototype object of a number = instance object of the parent constructor Children.prototype = new Father () / / create a child instance let c = new Children () / / the son inherits all the attributes of the father (big villa) And get their own name c.alertName () / / children console.log (c.house) / / cottage above is "what is the relationship of js prototype chain inheritance?" all the content of this article, thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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