Hello 👋, It is very easy to do 🙂

function largestNumber(arr) {
    // You can do this!
    const largest = [];
    for (let i = 0; i < arr.length; i++) {
        largest.push(Math.max(...arr[i]));
    }
    return largest;
  }

  console.log(largestNumber([[105, 35, 63, 89], [130, 270, 128, 216], [312, 335, 357, 399], [1000, 1001, 857, 1]]))

This was a quick article, I hope it helped you

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Thank you for reading, have a nice day!

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