Check if Array Contains Number

Problem

Given an array of integers array and an integer num, return true if num is an element in array, and false otherwise.

Examples

arrayContainsNumber([1, 2, 3, 4, 5], 3)
// true

arrayContainsNumber([10, 20, 30, 40, 50], 25)
// false

arrayContainsNumber([7, 14, 21, 28], 21)
// true

arrayContainsNumber([], 42)
// false