Put 10 minute timer code#
Thanks again for sharing the code and making my article even better.Basic Clock: Count down to a Specific Date or Time Luke Shiru has added a much more advanced code approach to my timer in the comments that I want to share with anyone who is more familiar with JavaScript or wants to be. Also, no imports have been made and the hooks start with eState and eEffect. There are no additional files in the CodePen and all the code is in the JavaScript sections. Please note that there are therefore differences in the structure, as I mentioned in the tutorial.
You can find the code and stylesheet embedded in the CodePen. Don't forget to import the timer component into the app component so it can be rendered. You can take a look at how I styled my code. You can now style each variable inside the return statement of the timer component the way you want it. The functionality of the timer is now fully set up. The built-in function Math.floor() returns the largest integer that is less than or equal to the specified value. Depending on your use case, you may not want to roll over the hours. if the milliseconds are 36 hours, the hours = hours % 24 line sets the hours to 12. To get the days, we need to divide time in milliseconds by 1000 (to get the seconds), 60 (to get the minutes), 60 again (because 1 hour has 60 minutes), and 24 (because 1 day has 24 hours), summarized here in parentheses as 1000 * 60 * 60 * 24 (abbreviated 86.400.000 can be used).Īfter getting each value, we use the remainder (%) operator to reset the values to 0 if, for example, the user passed 86.400.000 as milliseconds, which equals 24 hours.īy default, the function rolls over the hours if they are greater than 24, e.g. To get the hours, we must divide time in milliseconds by 1000 (to get the seconds), 60 (to get the minutes), and 60 again (because 1 hour has 60 minutes), summarized here in parentheses to 1000 * 60 * 60 (abbreviated 3.600.000 can be used). To get the minutes, we have to divide time by 1000 (to get the seconds) and divide by 60 (because 1 minute has 60 seconds). To get the values for each variable, we need to convert the milliseconds to seconds by dividing time by 1000 (because 1000 milliseconds is 1 second). Since time is an int in milliseconds, we can now calculate and set the value of the days, hours, minutes and seconds until the deadline. Don't forget to export the function.Įnter fullscreen mode Exit fullscreen mode Then, create a React arrow function component with the same name as the file and add the return statement. In your src folder, create a new file called Timer.js. You can find further instructions under create react app or the official React docs. To open it in Visual Studio Code (if you are using this IDE), and In the console to initialize the project. If you don't have a React project set up yet, use your console to go to the folder where you want to save your project by using If you want to add the timer to an existing project, you can skip this part. I have done my best to explain each step as accurately as possible 😬. This is the first tutorial I have written. Since the project is written in React, I also created the timer using the same setup. For one of my current projects, I created a timer until the release on New Year's Eve - December 31, 2022.
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