SortArrayByParity.js

// Source : https://leetcode.com/problems/sort-array-by-parity
// Author : Dean Shi
// Date   : 2019-06-30

/***************************************************************************************
 *
 * Given an array A of non-negative integers, return an array consisting of all the
 * even elements of A, followed by all the odd elements of A.
 *
 * You may return any answer array that satisfies this condition.
 *
 * Example 1:
 *
 * Input: [3,1,2,4]
 * Output: [2,4,3,1]
 * The outputs [4,2,3,1], [2,4,1,3], and [4,2,1,3] would also be accepted.
 *
 * Note:
 *
 * 1 <= A.length <= 5000
 * 0 <= A[i] <= 5000
 *
 ***************************************************************************************/

/**
 * @param {number[]} A
 * @return {number[]}
 */
var sortArrayByParity = function(A) {
    return [...A.filter(n => !(n % 2)), ...A.filter(n => n % 2)]
};