refactor: add formatTime helper

Author: solygambas

076-new year countdown/script.js

@@ -9,6 +9,10 @@ const loading = document.getElementById("loading");
 const nextYear = new Date().getFullYear() + 1;
 const newYearTime = new Date(`January 01 ${nextYear} 00:00:00`);
 
+function formatTime(unit) {
+  return unit < 10 ? "0" + unit : unit;
+}
+
 function updateCountdown() {
   const currentTime = new Date();
   const difference = newYearTime - currentTime;
@@ -17,11 +21,9 @@ function updateCountdown() {
   const currentMinutes = Math.floor(difference / 1000 / 60) % 60;
   const currentSeconds = Math.floor(difference / 1000) % 60;
   days.innerText = currentDays;
-  hours.innerText = currentHours < 10 ? "0" + currentHours : currentHours;
-  minutes.innerText =
-    currentMinutes < 10 ? "0" + currentMinutes : currentMinutes;
-  seconds.innerText =
-    currentSeconds < 10 ? "0" + currentSeconds : currentSeconds;
+  hours.innerText = formatTime(currentHours);
+  minutes.innerText = formatTime(currentMinutes);
+  seconds.innerText = formatTime(currentSeconds);
 }
 
 setTimeout(() => {