Write a program to find the most frequent item of an array

Instructions

• Input : const arr = [3, 'a', 'a', 'a', 2, 3, 'a', 3, 'a', 2, 4, 9, 3];
• Output : a 5

Challenges (0/2 done)

• mostFreq([1, 2, 2, 4, 5, 6, 6]) returns 2 2
• mostFreq([3, 'a', 'a', 'a', 2, 3, 'a', 3, 'a', 2, 4, 9, 3]) returns a 5

function mostFreq(arr) {
	// write your code here
	return
}

const arr = [1, 2, 2, 4, 5, 6, 6];

console.log(mostFreq(arr));