Practical React Question
How do you handle asynchronous data loading in a React application
In React programming asynchronous data can be handled using one of the best techniques known as lifting state up.
In addition, this command is also noted to have involved moving the state that manages the loading or executing and error state of the data to a common ancestor component, and, however, passing down the important and necessary callbacks and state through props to the components that need to use the said data.
Let’s take a greater look practically below:
Note that this is a typical and precise example of loading data asynchronous in a React component using the useEffects and fetch command.
Let’s break down the code into pieces for a clear understanding.
This particular component, that is MyComponent is known to use or uses three state variables namely:
- data
- error
- loading
With the aforementioned, they are initialized using the useState hook from React, with the known initial values of null, null and true respectively.
Meanwhile, the useEffect hook is also used to fetch data from an API endpoint, that is thehttps://examples.com/data when the component mounts.
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