04. Three Integers Sum

function threeIntegersSum(str) {
    let arr = str[0].split(' ').map(Number);
    console.log(check(arr[0], arr[1], arr[2]) || check(arr[0], arr[2], arr[1]) || check(arr[1], arr[2], arr[0]) || "No");

    function check(num1, num2, sum) {
        if(num1 > num2) {
            [num1, num2] = [num2, num1];
        }

        if(num1 + num2 == sum) {04. Three Integers Sum
            return "" + num1 + " + " + num2 + " = " + sum;
        }
    }
}

//threeIntegersSum(['8 15 7'])