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Object.getPrototypeOf

jpwzv edited in Wed, 11 Aug 2021
I adjusted it three times Object.getPrototypeOf Different results have been obtained. I want to call, but if I initialize obj to new date(), then obj is an object, connected to Date.prototype This is the resultI don't quite understand the first one. Since the first one is when a function is initialized, why is it different after several successive adjustments.
2 Replies
user282
commented on Wed, 11 Aug 2021

that is because

Object.getPrototypeOf(Date) === Function.prototype // true
Object.getPrototypeOf(Function.prototype) === Object.prototype //true
Object.getPrototypeOf(Object.prototype) === null //true

You can refer to this series of articles for a very detailed understanding of JavaScript prototypes and closures

Maki
commented on Wed, 11 Aug 2021

Your obj is always covered by the value of getprototypeof, which is different every time

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