implemenation.js

var ScoreUpdater = require('./ScoreUpdater.js');

 socket.on('bieberScoreArray', function(bieberScores) {
   var updater = new ScoreUpdater(bieberScores)
   $(".bieber-average-analyzing").hide();
   $('#bieber-average').text(updater.avgScore().toFixedDown(4));
   $('#bieber-interpreter').text(updater.label());
 })

ScoreUpdater.js

 var ScoreUpdater = function(scores){
   this.scores = scores
 }
 ScoreUpdater.prototype.avgScore = function(){
    var sum = 0;
   for (var i = 0; i < this.scores.length; i++) {
     sum += parseInt(this.scores[i], 10);
   }
   var avg = sum / this.scores.length;
 }
  ScoreUpdater.prototype.label = function(){
    var label;
    switch(this.avgScore()) {
    case (avg > 0 && avg < 1) :
        label = 'warm'
        break;
    case (avg >= 1 && avg < 2) {:
        label = 'hot'
        break;
    }

  }
  return label
}
module.exports = ScoreUpdater