Advanced Array Methods

Question 1

What is Array.prototype.filter useful for?

Answer 1

For extracting values that meet a certain criteria

Question 2

What is Array.prototype.map useful for?

Answer 2

For returning an array containing a version of values that meet a certain criteria

Question 3

What is Array.prototype.reduce useful for?

Answer 3

For returning a single value (that combines all the values down to one) that meets a certain condition