RWC: Maximized Array

maximized-array.js

/**
 * Comparison function for two integers which will sort the bigger one first
 * @param {number} int1 
 * @param {number} int2 
 */
function bySize(int1, int2) {
	return int2 - int1;
}

/**
 * 
 * @param {number[]} arr1 first list of integers
 * @param {number[]} arr2 second list of integers
 */
function maximizedArray(arr1, arr2) {
	const uniqueIntegers = new Set([...arr1, ...arr2]);
	return Array
		.from(uniqueIntegers)
		.sort(bySize)
		.slice(0, arr1.length);
}

console.log(
	maximizedArray([7, 4, 10, 0, 1], [9, 7, 2, 3, 6])
);