Count value in array Recursion Challenge

Given an array and a target value, return the number of times the target appears in the array. Comparisons use strict equality.

Function Signature

countOccurrence(array, value)

Parameters

• array — an array of values (numbers, strings, undefined, null, booleans, etc.).
• value — the target value to count.

Output

Return a number representing how many times value appears in the array.

Constraints

• The function must use recursion.
• The function should accept exactly two arguments.

Examples

countOccurrence([2, 7, 4, 4, 1, 4], 4)                     → 3
countOccurrence([2, 'banana', 4, 4, 1, 'banana'], 'banana') → 2
countOccurrence([undefined, 7, undefined], undefined)        → 2
countOccurrence(['', null, 0, '0', false], 0)                → 1
countOccurrence(['', null, 0, 'false', false], false)        → 1