Identify a method that decreases array by keeping only those items that return a value of true from the callback function.
A) array.every(callback [,thisArg])
B) array.map(callback [,thisArg])
C) array.reduce(callback [,thisArg])
D) array.find(callback [,thisArg])

Question

Identify a method that decreases array by keeping only those items that return a value of true from the callback function.
A) ​array.every(callback [,thisArg])
B) ​array.map(callback [,thisArg])
C) ​array.reduce(callback [,thisArg])
D) ​array.find(callback [,thisArg])

Quizplus · Accepted Answer

The `array.reduce` method can be used to filter an array by accumulating only those items that return true from the callback function. However, the more direct method for filtering is `array.filter`, which is not listed here.

Identify a Method That Decreases Array by Keeping Only Those