javascript-prototypes

Question 1

What kind of inheritance does the JavaScript programming language use?

Answer 1

prototype-based (or prototypal) inheritance

Question 2

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

Answer 2

prototype chain

Question 3

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

Answer 3

“prototype” object