const workout_empty = []; const workout_slot_ready = new Array(10000000).fill("slot", 0, 10000000);
for (let i = 0; i < 10000000; i++) { workout_empty[i] = "push-up"; }
for (let i = 0; i < 10000000; i++) { workout_slot_ready[i] = "push-up"; }