[Algorithm] 9 week(3.7 ~ 3.13) 1/3

561. Array Partition I

var arrayPairSum = function(nums) {
    const sortedNums = nums.sort((a, b) => a - b);
    const result = [];
    
    for(let i = 0; i < sortedNums.length; i = i + 2){
        result.push(Math.min(sortedNums[i], sortedNums[i+1]));
    };
    
    
    return result.reduce((prev, curr) => prev + curr, 0);
};