What is Query string?
Query string - The part of a URL that comes after the question mark (?), containing a set of parameters in key-value pairs. It is used to pass data between web pages and servers.
The query string starts with a question mark, followed by one or more parameter(s) separated by an ampersand (&). Each parameter consists of a key-value pair, where the key and value are separated by an equals sign (=).
In web development, the query string plays an important role in handling user input and providing dynamic content to users based on their requests.