Show a countdown timer and enable button after the time is up (plain JavaScript)

<p>
  Resend code in <strong>00:<span id="resend-verification-code-timer">59</span></strong>
</p>
<button id="resend-verification-code" disabled>Resend code</button>
</div>

let timerDuration = 60000; // milliseconds
let endTime = Date.now() + timerDuration; // keep track of the time difference explicitly
const resendCodeTrigger = document.querySelector("#resend-verification-code");
const resendCodeTimerElement = document.querySelector("#resend-verification-code-timer");

// Start countdown timer and show the time passing
const setResendCodeTimer = setInterval(() => {
  let delta = endTime - Date.now(); // milliseconds remaining till endTime
  let remainingSeconds = Math.floor(delta / 1000); // convert milliseconds to seconds
  resendCodeTimerElement.innerHTML =
    remainingSeconds < 10 ? `0${remainingSeconds}` : remainingSeconds; // show 00:07 instead of 00:7
}, 1000); // update remaining time display every second

function stopResetCodeTimer() {
  clearInterval(setResendCodeTimer);
}

// Enable the resend code button after timer duration (60 seconds) is up
function enableResendCodeButton() {
  setTimeout(() => {
    resendCodeTrigger.removeAttribute("disabled");
    stopResetCodeTimer();
  }, timerDuration - 1000);
}

enableResendCodeButton();