JS prototypes Flashcards
1
Q
What kind of inheritance does the JavaScript programming language use?
A
prototypal- inheritance- prototype-based or class-based
2
Q
What is a prototype in JavaScript?
A
the mechanism/ a template by which JavaScript objects inherit features from one another.
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
because there is a prototype template set for each of those datatypes that contain those methods
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
in the prototypes
