other

Question 1

What happens in web application when you hit the GO button?

Answer 1

An HTTP request is sent to the server. The hosted application’s logic will then process the request and the server will then send back an HTTP response.

Question 2

What is a polyfill?

Answer 2

A polyfill is code that implements a feature on web browsers that do not support the feature.
A common example would be to enable HTML5 features in an older browser that doesn’t have builtin support.