In order to check whether new comments are added, we can periodically check the server for updates. Use setInterval on componentDidMount every 5 second call the _FetchComment function.
This might sound expensive, but it's not.React optimizes the rendering process by only updating the DOM when changes are detected on the resulting markup.
This might sound expensive, but it's not.React optimizes the rendering process by only updating the DOM when changes are detected on the resulting markup.
