How can I get the largest number value along with the username from this array?

Question

Im trying to get the user & value with the highest number from this array but have had no luck in my searches. I'm starting to wonder if my array is poorly written.

{
  "radtech2": 1,
  "conorlarkin4": 25,
  "jdon2001": 15,
  "nobel_veo": 101,
  "frapoden": 1,
  "duckyboy17": 31,
  "faeded": 30,
  "jimbob20001": 17,
  "leb0wski": 15,
  "3cavalry": 2,
  "hardoak22": 25,
  "deep_slide": 10000,
  "sillywil": 7
}

Answer 1

 const users = { "radtech2": 1, "conorlarkin4": 25, "jdon2001": 15, "nobel_veo": 101, "frapoden": 1, "duckyboy17": 31, "faeded": 30, "jimbob20001": 17, "leb0wski": 15, "3cavalry": 2, "hardoak22": 25, "deep_slide": 10000, "sillywil": 7 }; const highestUser = users => Object.keys(users).reduce( (highest, current) => highest.val > users[current] ? highest : { user: current, val: users[current] }, { user: undefined, val: -Infinity } ).user; console.log(highestUser(users));

Answer 2

Let me try to squeeze it into a one-liner approach using Object.keys() and Array.reduce() .

 const users = { "radtech2": 1, "conorlarkin4": 25, "jdon2001": 15, "nobel_veo": 101, "frapoden": 1, "duckyboy17": 31, "faeded": 30, "jimbob20001": 17, "leb0wski": 15, "3cavalry": 2, "hardoak22": 25, "deep_slide": 10000, "sillywil": 7 }; const res = Object.keys(users).reduce((a, b) => users[a] > users[b] ? a : b); console.log(res);

How the above code works is that I get the array of keys from the users object, and I use reduce to get the highest possible value and return the corresponding property from the array obtained from Object.keys().

Answer 3

Use keys() and entries() methods to search your JSON object. Save largest value into eg const largest and then find out which key belongs to this value.

Answer 4

What you show in your question is an Object , not an Array ; however, it does need to be turned into an array in order to work with it.

You can do that with Object.entries() , which will return an array of all the key/value pairs in the object.

Then you can use Array.reduce() to extract the one with the largest value.

 const data = { "radtech2": 1, "conorlarkin4": 25, "jdon2001": 15, "nobel_veo": 101, "frapoden": 1, "duckyboy17": 31, "faeded": 30, "jimbob20001": 17, "leb0wski": 15, "3cavalry": 2, "hardoak22": 25, "deep_slide": 10000, "sillywil": 7 } let winner = Object.entries(data).reduce((a, b) => (a[1] > b[1]) ? a : b) console.log(winner)