Function arrayPairSum

LeetCode/Greedy/561. Array Partition I/JaeHong.js:1–10

(nums)

var arrayPairSum = function (nums) {
  nums.sort((a, b) => a - b);
  let result = 0;

  for (let i = 0; i < nums.length; i += 2) {
    result += nums[i];
  }

  return result;
};