More efficient choice comparison for Rock Paper Scissors

Question

This is an ongoing school project that I would like to improve. The point is to make the code as efficient (or short) as possible. I would like to reduce it by finding an al

Answer 1

You can define an object that define if your move is weak or strong against another. Example:

const myChoice = 'Rock'
const enemyChoice = 'Scissors' 

const weapons = {
   Rock: {weakTo: 'Paper', strongTo: 'Scissors'},
   Paper: {weakTo: 'Scissors', strongTo: 'Rock'},
   Scissors: {weakTo: 'Rock', strongTo: 'Paper'}
}

if (weapons[myChoice].strongTo === enemyChoice) {
    // I won
    return;
}

if (weapons[myChoice].weakTo === enemyChoice) {
    // I Lost
    return;
}

// tie