The single object instantiated above has three properties, one being a function. Creating a second object with a very similar structure makes OO developers everywhere cringe:
Creating our own prototype lets us use any object as the prototype. The realization that __proto__ is just a normal object and we are able to do normal “object” stuff with it allows us to use it to solve the earlier code reuse problem. In the example below, we simply assign the prototype from driverlicense1 to the __proto__ property of driverslicense2. Now both instances of the driverslicense can share the implementation of the show method.
Written by Todd Wright
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