Everything you need to know about JavaScript Countdown timer

If you are interested in making clean and perfect scripts, then you have come to the right place.
This is because, here we are going to explain a very interesting concept in JavaScript.
This language allows us to do a lot of things.
We are going to introduce the JavaScript countdown timer.

Introduction to JavaScript Countdown timer:

First of all, there are a lot of scripts present which are used to make the countdowns, clocks as well as timers. You can follow any of them in order to make your countdown timer. This is a very simple code which can help you a lot if you want to improve your programming skills. This is the best playground to try new things. With the help of this countdown, you will be able to get a complete sentence which explain how much time if left with you.

How to make this script:

First of all, you have to add this script in your page.

<script src="js/countdown.js"></script>

The use of countdown is as simple as instantiating class countdown.

var countdown = new Countdown ()

It will make a new instance with everything you need including the default values.
But, for learning purposes, you can do a lot more.
You can choose several options like:

  • Selector: You have to choose a valid selector for your countdown timer. The string should be authentic. document.querySelector().

  • Starting date: Default: new Date() (now) Here, you have to choose the date. The date you choose must be a valid example of date class. In this way, you will not get any errors while running your code.

  • Ending date: The ending date should also be a valid part of the class date. You have to choose this date in order to complete your code.

  • Message before: If you want to display a message before the deadline, this is your platform. You can put any message in your code. For instance: Be ready.

  • Message pattern: Here, you have to add weeks, months, years, hours, minutes and seconds.

  • On Start: It will run whenever the code starts.

  • onEnd: It will run whenever the code ends.

    Example:

var countdown = new Countdown({
  selector: '.timer'
})
$('.timer').on('countdownStart', function() {
  console.log('The countdown is now started.')
})
$('.timer').on('countdownEnd', function() {
  console.log('The countdown is now ended.')
})

This is the simplest countdown timer which you can make with JavaScript langauge.

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