Скачать или смотреть fetching data in react complete tutorial

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fetching data in react is a common task that allows you to retrieve data from an api and display it in your application. in this tutorial, we'll cover the basics of fetching data using the `fetch` api and `axios`, a popular http client for javascript. we'll also look at handling loading states and errors.

prerequisites

basic understanding of javascript and react.
node.js and npm installed on your machine.

setting up the project

1. *create a new react app* using create react app:



2. *install axios* (optional, if you want to use it instead of fetch):



fetching data using fetch api

we will start with the built-in `fetch` api.

step 1: create a data fetching component

create a new component called `datafetcher.js` inside the `src` folder.



step 2: use the data fetching component

now, you need to use the `datafetcher` component in your main `app.js` file.



step 3: run the application

run your application to see the data fetching in action:



fetching data using axios

now, let's see how to fetch data using axios.

step 1: update the data fetching component

modify `datafetcher.js` to use axios instead of the fetch api.



step 2: run the application again

now that you've switched to axios, run your application again:



conclusion

in this tutorial, you learned how to fetch data in a react application using both the built-in `fetch` api and the `axios` library. you also learned how to handle loading states and errors gracefully. you can further expand this example by adding features such as pagination, search, or filtering of the fetched data.

additional tips

always handle errors when fetching data to provide a better user experience.
consider using libraries like `react-query` for more complex data fetching and caching needs.
use hooks like `usecontext` or state management libraries like redux for global state management if needed.

feel free to experiment and enhance this basic example according to your needs!

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