How can I make it so that when I use this command I cannot use it until the time set on the timer has passed?

Question

Node.js

I used this timer when writing a command in a discord bot, but I ran into a problem, since I planned that the command could be used once every half an hour, and it is used an unlimited number of times, it just runs in half an hour, what should I do?
Thank you all in advance

const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));

let iteration    = 0;
let handleOffset = 60000 * 30;

(async () => {
  while (iteration < handleOffset) {
    iteration = iteration + 1000;
    console.log('Осталось: ' + (handleOffset - iteration) + 'сек');
    
    await sleep(1000);
  }
})();

setTimeout(() => console.log('Хоба!'), handleOffset);

Answer 1

there is an answer in your question:
while (iteration < handleOffset) { . . .
just make an if-statement with a check for iteration and handleOffset:

if (iteration < handleOffset) {
 // действие, которое происходит, пока iteration меньше handleOffset
} else {
 // действие, которое происходит при остановке таймера
}