OOP inheritance implementation of js (must read)

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The reason why Student.prototype is created using the create method instead of directly assigning the value of Person.prototype is because if assignment is used If so, both point to the same object. If we want to add a new method to the student class, that won't work. So if you use the create method to use Person.prototype as the prototype of Student.prototype

If we modify the attributes on bosn's prototype, then bosn will be affected . It should be noted that we found that if the prototype object of bosn is modified, bosn will not change. For an instance that has already been created, modifying the prototype object will not cause the instance to change.

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