Hah, I wrote one as well to prove it to myself in the chrome dev tools console const pickCar = (switchChoice) => { const doors = [0, 0, 0]; doors[(Ma

Hah, I wrote one as well to prove it to myself in the chrome dev tools console const pickCar = (switchChoice) => { const doors = [0, 0, 0]; doors[(Math.random() * doors.length - 1) | 0] = 1 let pick = (Math.random() * doors.length - 1) | 0 let goat for(let i = 0; i < doors.length; i++) { if (doors[i] == 0 && i != pick) goat = i } let result = pick if (switchChoice) for(let i = 0; i < doors.length; i++) { if (i != pick && i != goat) result = i } return result } let switchWins = 0; let switchLosses = 0; for(let i = 0; i < 100000; i++) { pickCar(true) == 1 ? switchWins++ : switchLosses++ } console.log('wins:', switchWins, ', losses: ',switchLosses)