Calculating max diff

max-diff.js

const findDifference = (a, b) => {
	let diff = a - b;
	return diff;
}

const findMaxDifference = (arr) => {
	let diff = 0,
			max_diff = 0,
			min = array[0],
			max = array[1];

	for (let i = 0; i < arr.length; i++) {

		let diff = findDifference(min, arr[i]);

		if(arr[i] < min) {
			min = arr[i];
			diff = findDifference(min, arr[i]);
		}

		let adjustedDiff = (diff) => {
			if (diff < 0) {
				diff = diff * -1;
			}
			return diff;
		};

		if(adjustedDiff(diff) > max_diff) {
			max_diff = diff;
			max = arr[i];
		}

	}

	return `min is ${min}, max is ${max}, diff ${diff}, max diff is ${max_diff}`;
};

const array = [40, -20, 4, 9, 30, 15, 3, 1, 10]; // min is -20, max is 30, diff 0, max diff is 50
console.log(findMaxDifference(array));