'Creating Context in ReactJS Using TypeScript' reactjs contextapi
ContextAPI is one of the most exciting features of ReactJS which was released in early 2019 that helps us implement the state management in our React apps without importing extra libraries, like Redux or MobX.UserData type is not so important for this tutorial, and that’s why we’ll define some key properties which might be different based on your specific needs:Then we need to think about what we need your context to do.
Some devs prefer to define the context without initial value, but that way you might have to check if userContext.loadUserDate is defined before calling the function.const UserProvider: React.FC==> { const [userData, setUserData] =React.useState; const loadUserData=async => { console.log }; const value={ userData, setUserData, loadUserData, }; return ; };
Let’s say, we want our context to load automatically the user data without needing to call the userContext.loadUserData from some of the children. In order to achieve this, we’ll write an useEffect that will make our initial load.And now let’s update our loadUserData function and implement a sample API call to a non existing API, for the sake of example.
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