CODEWITHSUNDEEP
javascript
Stacker-flow
Stacker-flow

Reputation: 1309

Get the top ten vars with the highest value in Javascript

Basically I have about 36 variables that are named t0, t1, t3 ... and so on, each variable is initiated with the value 0, and depending on actions they get incremented by 1.

I want a way to be able to list the top ten highest valued variables ideally by putting them in an array like Var topTen = [t33,t31,t2].

Upvotes: 0

Views: 2603

Answers (5)

Pavel Gatnar
Pavel Gatnar

Reputation: 4053

res = [{k:"t1",v:t1},{k:"t2",v:t2},...,{k:"t36",v:t36}].sort(
function(a,b){
return b.v-a.v
}).map(function(x){return x.k}).slice(0,9)

btw. you can create the array dynamically if the variables are represented as object properties... if you need the values, then return x.v instead of x.k

Upvotes: 1

jcgaudette
jcgaudette

Reputation: 56

Should try this method :

var myarray=["t14", "t53", "t1"]
    myarray.sort();
    myarray.reverse();
var final = myarray.slice(0,10);

//SHOULD GIVE YOU
// ["t53", "t14", "t1"]

Then you can extract the ten first value.

UPDATE --> JSFiddle

Upvotes: 1

Mritunjay
Mritunjay

Reputation: 25892

Sort your array after that slice first 10 elements.

arr.sort(function (a,b) {
    return a - b;
});

var result = arr.slice(0,10);

Upvotes: 0

Andy
Andy

Reputation: 63550

Why don't you use an object to store the information - instead of 36 variables have just one object with 36 properties. Then you can loop through the values, add them to an array and grab the set of numbers you need:

var obj = {
    t1: 1,
    t2: 33,
    t3: 10,
    t4: 9,
    t5: 45,
    t6: 101,
    ...
}

// create an array
var arr = [];

// loop through the object and add values to the array
for (var p in obj) {
  arr.push(obj[p]);
}

// sort the array, largest numbers to lowest
arr.sort(function(a,b){return b - a});

// grab the first 10 numbers
var firstTen = arr.slice(0, 9);

This will return an array - just loop through it to list the values one by one.

DEMO

Upvotes: 1

Patrik Oldsberg
Patrik Oldsberg

Reputation: 1550

First put the variables in an array:

var ts = [t0, t1, ...];

You can then get the top 10 like this:

var topTen = ts.sort().slice(-10).reverse();

Ideally you want store all your values in an array in the first place.

Upvotes: 0

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