[рони]

marishka88,

function getLocation(coordinates, commands) {
            let [x, y] = coordinates;
            for (let command of commands) {
                if (command === 'forward') {
                    y++;  //y += 1
                }
                if (command === 'back') {
                    y--;  //y -= 1
                }
                if (command === 'right') {
                    x++;  //x += 1
                }
                if (command === 'left') {
                    x--; // x -= 1
                }
            }
            return [x, y]
        }
        let coordinates = [2, 1],
            commands = ['left', 'back', 'back']
        alert(getLocation(coordinates, commands));