![]() This command will take a while, and create the project structure for you. Open the command prompt/terminal and execute this command, npx create-react-app countdown To follow along, you can use the Create React App(CRA) to create your initial project structure. I hope you have started "Thinking in React" already! Let's start putting things in code. We will determine the counter value based on the individual values of days, hours, minutes, and seconds. We also see the conditional rendering of ShowCounter and ExpiredNotice based on the counter value. It supplies the required data to the component as needed. We see the useCountdown hook isolated from the component hierarchy. With that, now take a look at the following diagram. The custom hook accepts the initial date and time and returns the count of days, hours, minutes, and seconds in the interval of our choice(say, in every 1000 ms). We can isolate the countdown calculation in a custom hook called useCountdown. Let's welcome Custom Hook to solve the problem. So, you shouldn't keep this tightly coupled with any components. But think about it, you may need this countdown calculation elsewhere in your app in the future. ![]() Please note we can do the entire countdown computation inside CountdownTimer or ShowCount components.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |