React interview questions in Hindi #27 What do you understand with the term polling

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What do you understand with the term polling
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Polling in React refers to the practice of repeatedly making requests to a server or an API at specific intervals to fetch updated data. This technique is often used to keep a web application synchronized with a backend data source. Polling allows the application to receive real-time or near-real-time updates without the need for the server to push updates actively.

There are different types of polling:

Regular Polling (Fixed Interval Polling): In regular polling, the client sends requests to the server at fixed time intervals, regardless of whether new data is available or not. For example, you might send a request every 5 seconds to check for updates.

Long Polling (Comet Programming): Long polling is a technique where the client sends a request to the server and the server holds the request open until new data is available. Once new data is available, the server responds, and the client immediately sends another request to keep the connection alive.

Short Polling: Short polling is similar to regular polling, but the client sends requests at shorter intervals. This approach can provide quicker updates, but it can also generate more server load due to the higher frequency of requests.

In a React application, you might implement polling using techniques like setInterval (for regular polling) or making repeated asynchronous requests (using libraries like fetch or Axios) at specific intervals.Please do like share and comment if you like the video please do hit like and if you have any query please write it comment box
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