js prototypes

Question 1

What kind of inheritance does the JavaScript programming language use?

Answer 1

prototype-based aka prototypal

Question 2

What is a prototype in JavaScript?

Answer 2

an object on which another object is based

Question 3

How is it possible to call methods on strings, arrays, and numbers even though those methods don’t actually exist on strings, arrays, and numbers?

Answer 3

they exist on a prototype object and are borrowed as needed

Question 4

If an object does not have it’s own property or method by a given key, where does JavaScript look for it?

Answer 4

prototype, then the prototype’s prototype, etc