Also added sound alert when the time get's up & made it responsive.
Date.now()method returns the number of milliseconds elapsed since January 1, 1970 00:00:00 UTC.Useful for making countdown timer- In
setInterval()if we use it to countdown then sometimes it will stop on browser & iPhone for performance issues. So call it in a varibale instead of calling on self. - Make the structure & identify for which to make function.
clearInterval()to stop the interval.- Also learned about
new Date(timestamp)that we can pass timestamp to Date object. - In this I learn how to deal with JavaScript parts with how to make functions & used them accordingly.
- If remaining seconds or minutes are less than 10 then add 0 before it.
remainderSeconds < 10 ? '0' : ''