Tossing 2 coins - probability calculations

Tossing 2 coins - probability calculations.js

(() => {

const toss = () => Math.random() >= .5;

const throws = [];
for(let i = 0; i < 10000; ++i) {
  const isHead1 = toss(),
        isHead2 = toss();
  throws.push(
     isHead1 &&  isHead2 ? 'HH' :
    !isHead1 && !isHead2 ? 'TT' :
                       'HT' // or TH
  );
}

let hh = 0,
      tt = 0,
      ht = 0;
throws.forEach(
  (x) => x == 'HH' ? ++hh :
         x == 'TT' ? ++tt :
                     ++ht
);

console.log(hh/10000,tt/10000,ht/10000);

})();