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    CamperBot
    @camperbot

    :fire:Bonfire: Return Largest Numbers in Arrays :link:

    function largestOfFour(arr) {
      // You can do this!
      return arr;
    }
    
    largestOfFour([[4, 5, 1, 3], [13, 27, 18, 26], [32, 35, 37, 39], [1000, 1001, 857, 1]]);

    Return an array consisting of the largest number from each provided sub-array. For simplicity, the provided array will contain exactly 4 sub-arrays.

    more info:  bf details | bf links | hint

    Michael Martin
    @MikeASNT
    hint
    CamperBot
    @camperbot
    These hints depend on people like you! Please add to this :point_right: Bonfire's Wiki Hints Page
    Ghost
    @ghost~55ee52540fc9f982beaff6cd
    hint
    CamperBot
    @camperbot

    hint [1/8]

    ## :construction: After this are possible spoiler hints.

    Make sure you've tried to hard to solve it yourself before proceeding. :construction:

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    Ghost
    @ghost~55ee52540fc9f982beaff6cd
    hint
    CamperBot
    @camperbot

    hint [2/8]

    # Explanation:

    You will get an array that contains sub arrays of numbers and you need to return an array with the largest number from each of the sub arrays.

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    Ghost
    @ghost~55ee52540fc9f982beaff6cd
    hint
    CamperBot
    @camperbot

    hint [3/8]

    Hint: 1

    You will need to keep track of the array with the answer and the largest number of each sub-array.

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    Ghost
    @ghost~55ee52540fc9f982beaff6cd
    hint
    CamperBot
    @camperbot

    hint [4/8]

    Hint: 2

    You can work with multidimensional arrays by Array[Index][SubIndex]

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    mtbdanimal
    @mtbdanimal
    hint
    CamperBot
    @camperbot

    hint [1/8]

    ## :construction: After this are possible spoiler hints.

    Make sure you've tried to hard to solve it yourself before proceeding. :construction:

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    mtbdanimal
    @mtbdanimal
    hint
    CamperBot
    @camperbot

    hint [2/8]

    # Explanation:

    You will get an array that contains sub arrays of numbers and you need to return an array with the largest number from each of the sub arrays.

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    mtbdanimal
    @mtbdanimal
    hint
    CamperBot
    @camperbot

    hint [3/8]

    Hint: 1

    You will need to keep track of the array with the answer and the largest number of each sub-array.

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    mtbdanimal
    @mtbdanimal
    hint
    CamperBot
    @camperbot

    hint [4/8]

    Hint: 2

    You can work with multidimensional arrays by Array[Index][SubIndex]

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    mtbdanimal
    @mtbdanimal
    hint
    CamperBot
    @camperbot

    hint [5/8]

    Hint: 3

    Pay close attention to the timing of the storing of variables when working with loops

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    mtbdanimal
    @mtbdanimal
    hint
    CamperBot
    @camperbot

    hint [6/8]

    Spoiler Alert!

    687474703a2f2f7777772e796f75726472756d2e636f6d2f796f75726472756d2f696d616765732f323030372f31302f31302f7265645f7761726e696e675f7369676e5f322e676966.gif

    Solutions ahead!

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    mtbdanimal
    @mtbdanimal
    hint
    CamperBot
    @camperbot

    hint [7/8]

    Solution 1:

    function largestOfFour(arr) {
      var results = [];
      for (var n = 0; n < arr.length; n++) {
        var largestNumber = 0;
        for (var sb = 0; sb < arr[n].length; sb++) {
          if (arr[n][sb] > largestNumber) {
            largestNumber = arr[n][sb];
          }
        }
    
        results[n] = largestNumber;
      }
    
      return results;
    }

    Code Explanation:

    • Create a variable to store the results as an array.
    • Create an outer loop to iterate through the main array.
    • Before going into the inner loop, create a variable to hold the largest number. This must be outside the inner loop.
    • Create another for loop to work with the sub-arrays.
    • Check if the element of the sub array is larger than the current largest number. If so, then save the number.
    • After the inner loop, save the largest number in the variable for the results.

    type hint for next hint :pencil: [Contribute at the FCC Wiki]

    Kyle Kinzalow
    @KyleKinz
    can't figure out why results[n] = largestNumber; is where it is and how it's working
    actually I guess it's setting each iteration of [n] to largest number after all the other work has been done
    Craig Rufener
    @crufener
    This message was deleted
    CamperBot
    @camperbot
    Sorry, can't find a bonfire called caesars cipher. [ Check the map? ]
    bitgrower
    @bitgrower
    weird -- that answer doesn't look right to me ... I thought you had to return an array, not a single number ...
    scharrin
    @scharrin
    why isn't it work.. I think it's correct..?
    function largestOfFour(arr) {
    return arr.map((v)=>v.sort()[v.length-1]);
    }
    Ashikur Rahaman
    @ashikCodecamper
    hi