Weaponsmith

function Weapon(input) {
    let w = input.shift();
    let weapon = w.split('|');
    let command = input.shift();
    while (command !== 'Done') {
        let arrEvenOdd = [];
        if (command.includes('Move Right')) {
            let num = command.split(' ');
            let indexR = +num[2];
            if (indexR >= 0 && indexR < weapon.length - 1) {
                let val = weapon[indexR + 1];
                weapon[indexR + 1] = weapon[indexR];
                weapon[indexR] = val;
            }
        } else if (command.includes('Move Left')) {
            let num = command.split(' ');
            let indexL = +num[2];
            if (indexL > 0 && indexL < weapon.length) {
                let val = weapon[indexL - 1];
                weapon[indexL - 1] = weapon[indexL];
                weapon[indexL] = val;
            }
        } else if (command.includes('Odd')) {
            for (let k = 0; k < weapon.length; k++) {
                if (k % 2 !== 0) {
                    arrEvenOdd.push(weapon[k]);
                }
            }
        } else if (command.includes('Even')) {
            for (let k = 0; k < weapon.length; k++) {
                if (k % 2 === 0) {
                    arrEvenOdd.push(weapon[k]);
                }
            }
        }
        if (arrEvenOdd.length > 0) {
            console.log(arrEvenOdd.join(' '));
        }
        command = input.shift();
    }
    console.log(`You crafted ${weapon.join('')}!`);
}