Long polling is a web application development pattern used to emulate pushing data from the server to the client. When the long polling is used, the client sends a request to the server, and the connection remains intact until the server is ready to send data to the client. The connection will be closed only after the data is sent back to the client or connection timeout occurs.
Explain in CSS, how can you make a form element’s background color change when the user is entering text? Does this work in all browsers?
Yes, you can change the default look of form elements by styling their HTML tags: input, select and textarea but it won’t work for all browsers.
The advantage of HTTP/2 compared to HTTP/1.1 is HTTP headers data compression Server push technologies Over a single TCP connection parallel loading of page elements Prioritization of request