XHR or XML HTTP request is an object utilising the AJAX technique to communicate with the server. However, XHR is not used in the industry nowadays because it uses callbacks. Can you guess what problems the developer might run into while using XHR? Although Fetch primarily uses promises, it can also use async-await. In the project, […]

HTTP headers are used by clients and servers to pass additional information to each other.  When the client exchanges information with the server, there is a need to explicitly specify the format of this data as well. HTTP headers are used to specify this meta information. HTTP headers are broadly classified into the following four categories: […]

Understanding status codes is a must-know for any developer because they give an insight about what is exactly happening during any request. They let the developers understand if the request made is successful or not and if it is unsuccessful, where does the issue lie. HTTP response status codes are predefined response codes sent by a […]