JSFiddle - React, Tailwind, and code Playground

JavaScript

function RandomScore() {
   var score1 = Math.random() * 10,
       score2 = Math.random() * 10;
   this.sum = function() {
       return score1 + score2;
   }
   this.getScore1 = function() {
       return score1;
   }
   this.getScore2 = function() {
       return score2;
   }
}
var randomScore = new RandomScore();
console.log(randomScore.getScore1() + '+' + randomScore.getScore2() + '=' + randomScore.sum());