JavaScript - Giving an array of objects a rating based on numerical value and incrementing the ratin-CodePudding

    {
        "name": John,
        "awards": 3
    },
    {
        "name": Pat,
        "awards": 9
    },
    {
        "name": Mary,
        "awards": 2
    },
    {
        "name": Joe,
        "awards": 1
    },
    {
        "name": Kathleen,
        "awards": 1
    },
    {
        "name": Teddy,
        "awards": 1
    },

]

Hi, how do i sort this array of objects and add a new attribute to each object called score, giving each of them a score between 1 and 6, if some objects have the same score the next score needs to increment by the number of value with the same score. This is an example of how i need the output to be. Thanks

    {
        "name": John,
        "awards": 3,
        "score": 5
    },
    {
        "name": Pat,
        "awards": 9,
        "score": 6

    },
    {
        "name": Mary,
        "awards": 2,
        "score": 4

    },
    {
        "name": Joe,
        "awards": 1,
        "score": 1

    },
    {
        "name": Kathleen,
        "awards": 1,
        "score": 1

    },
    {
        "name": Teddy,
        "awards": 1,
        "score": 1

    },

]

CodePudding user response：

Sort, then assign the index as the score, unless the previous entry is equal, in that case take over their score:

 const byAward = (a, b) => a.awards - b.awards;
 winners.sort(byAward);
 winners.forEach((winner, index) => {
    if (index === 0 || byAward(winner, winners[index - 1]) !== 0) 
      winner.score = index   1;
    else 
      winner.score = winners[index - 1].score;
 });