top 10 scores of user

top10.js

// Getting documents from databse

      Score.findOne({_id: process.env.ID}, (err, players) => {
        if (err) throw new Error(err)
        let playersArray = players.players.sort(function (a, b) {
          return b.score - a.score
        })
        let lowestScore = []
        lowestScore.push(playersArray[playersArray.length - 1].score)

        // checking if last score is less then current score
        function remove () {
          // First removing last player
          Score.update({_id: process.env.ID}, {$pop: {players: 1}}, (err) => {
            if (err) throw new Error(err)
            console.log('Removed last player')
          })
        }

        function add () {
          // Then updating current player
          Score.update({_id: process.env.ID}, {$push: {players: {score, username}}}, (err) => {
            if (err) throw new Error(err)
            console.log('Added new High score')
          })
        }

        async function update () {
          // Then again sorting it correctly
          await Score.update({_id: process.env.ID}, {$push: {players: {$each: [], $sort: -1}}}, (err) => {
            if (err) throw new Error(err)
            console.log('Sorted in descending order after adding')
          })
        }
        if (score > lowestScore[0]) {
          (async () => {
            Promise.all([update()]).then(async () => {
              await remove()
              await add()
              await update()
            })
          })()
        }
      })