Javascript prototype

prototype.md

prototype

The prototype is a property of a function_{constructor function} or class_es6. It used for define class's members, like fields and methods, and it's instance(new) will inherit these members. When an instance calls the members it inherited from a class, it dosent look for it's prototype, beacuse an instance dosent has prototype property. What are the members come form? The __proto__ do this, so we talk about 'protorype chain' more likes __proto__.__proto__.__proto__ than protorype.protorype.protorype, the instance.__proto_ === class.prototype is true. we find members from it! So what the prototype is? from the above, we know when we create a instance, the __proto__ will refers to prototype object, we also can say it is used for create __proto__