CODEWITHSUNDEEP
javascriptecmascript-6
Canovice
Canovice

Reputation: 10491

Javascript - get n'th largest value for a particular key's values in array of objects

First, here's a quick snippet of the data I'm working with:

var myData = [
    {player: "Joe", team: "team1", stat: 15},
    {player: "Tom", team: "team3", stat: 23},
    {player: "Red", team: "team2", stat: 8},
    {player: "Smi", team: "team5", stat: 0},
    {player: "Bib", team: "team6", stat: 24},
    {player: "Cat", team: "team2", stat: 6},
    {player: "Dan", team: "team3", stat: 50},
    {player: "Jim", team: "team1", stat: 17}
]

Simple enough, I am trying to grab the n'th largest value from the stat key's values in myData, and then filter myData to include only the n objects where the stat key's value is greater than or equal to the n'th largest value. I am not too worried about how ties are handled (ie. if there is more than one value tied for n'th largest...

Still getting my feet wet with javascript, so any help with these data manip tasks are greatly appreciated, thanks!

Upvotes: 0

Views: 66

Answers (1)

Matheus Cuba
Matheus Cuba

Reputation: 2156

Use it like this:

ReturnHigherFrom(2) //Returns 2 with most higher stats

var myData = [
    {player: "Joe", team: "team1", stat: 15},
    {player: "Tom", team: "team3", stat: 23},
    {player: "Red", team: "team2", stat: 8},
    {player: "Smi", team: "team5", stat: 0},
    {player: "Bib", team: "team6", stat: 24},
    {player: "Cat", team: "team2", stat: 6},
    {player: "Dan", team: "team3", stat: 50},
    {player: "Jim", team: "team1", stat: 17}
];

console.log(ReturnHigherFrom(3));

function ReturnHigherFrom(nth){
    return myData.sort((a, b) => b.stat - a.stat).slice(0, nth);
}

Edited to make shorter thanks to @ibrahimmahrir

Upvotes: 1

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