![]() ![]() If you are a web developer or designer or if you have an interest in learning these skills, this post will help you. Also, I will give you all the source code so you can create a countdown timer just like this one. ![]() In this section, I will show how you can create this exact 30-minute timer using only HTML, CSS & JavaScript. ![]() How to create this exact 30-minute timer using HTML, CSS & JavaScript? I tested this timer on Android, iPhone, iPad, Chrome, and Firefox. To share your ideas with me, please send me an email to mobile responsive and works on all major web browsers. So I can get ideas to add more necessary features to this timer (if there are any). However, if you have any suggestions to improve this timer, please let me know. Also, screen readers and disabled persons can easily navigate through the user interface. In a nutshell, I made this countdown timer as user-friendly as you need. And the sound will stop if it was enabled. ![]() Once the 30-minute countdown finishes, the timer will turn from green to red color. You can switch back and forth with the timer sound. Also, you can pause/stop the sound by clicking the “ Disable Sound” button. But if you wish to play a clock TikTok, click the “ Enable Sound” button. The countdown timer starts without any sound. You also have the option to reset this timer by clicking the “ Reset” button. This is a 30-minute timer that starts to countdown right away and as soon as the page loads. Function to display coundown on screenĬountContainer.Reset Enable Sound Disable Sound Your browser does not support the audio element. Select Every Count ContainerĬonst countContainer = document.querySelectorAll(".count-digit") We select every containers created in step 1 using “querySelectorAll” method and iterate over the list and assigning the DOM innerHTML with the characters of the countdown string. Once we are able to generate the string in “MM:SS” format, now we have to display the string on the screen. Var seconds = String(countDownTime % 60) Var minutes = String(unc(countDownTime / 60)) Displaying the countdown directly in seconds is less readable, hence will generate the countdown string in “MM:SS” format and append zeros for single-digit values. Creating separate functions allows for the reuse of the code and makes it easier to modify/add existing functionalities.įirst, we will create a function to generate the countdown string which requires remaining time in seconds. Function to Generate countdown stringīefore we add any JavaScript functionality to the app, we need to create JavaScript functions to support countdown timer functionalities. 30-min Countdown timer with HTML and CSS code 3. For CSS code for timer and buttons please refer “Final solution code” section at the end of this article. Once we are displaying the minutes and seconds of the count, now we will add HTML buttons for the start, stop and reset actions of the timer. Add buttons for start, stop and reset actions Additionally, we also add a “:” separator to divide minutes and seconds timing. For 30 minutes countdown, we need 4 digits with 2 each to display minutes and seconds remaining in the countdown. The first step is to create HTML element for every digit that needs to be display in the countdown clock. 30-min countdown timer with start, stop and reset 1. In addition, we will add an alarm sound when the countdown reaches 0 after successfully completing 30 minutes. In this article, we will learn how to create 30 minutes countdown timer where you can start a countdown, stop the countdown and also reset the countdown to the default value. ![]()
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