js prototypes Flashcards
1
Q
What kind of inheritance does the JavaScript programming language use?
A
prototypical inheritance
2
Q
What is a prototype in JavaScript?
A
object that contains properties that can be inherited
3
Q
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?
A
they exist on the prototype
4
Q
If an object does not have it’s own property or method by a given key, where does JavaScript look for it?
A
it looks for it in the prototype chain
