Weight for weight

function orderWeight(strng) {
arr = strng.split(" ");
for (let i = 0; i < arr.length; i++) {
  if (strng.length !== 0) {
    let current = arr[i].split("").reduce((a, b) => +a + +b, 0);
    arr[i] = [+arr[i], +current];
    } else {
    return '';
    }
}
arr.sort((a, b) => {
    if (a[1] > b[1]) {
        return 1;
    }
    if (a[1] < b[1]) {
        return -1;
    }
    if (a[1] === b[1]) {
        return a[0].toString().localeCompare(b[0].toString()) 
    }
})
return arr.map(x => x[0].toString()).join(" ").trim();
}

let output = orderWeight("2000 10003 1234000 44444444 9999 11 11 22 123");
console.log(output === '11 11 2000 10003 22 123 1234000 44444444 9999');