Answer:
JavaScript
Explanation:
JavaScript is one of the simplest programming languages which makes the page dynamic and user interactive. It is a command based programming language that is a part of DHTML (Dynamic hypertext markup language ). The dynamic web page can be modified and its values can be changed.
JavaScript allows users to enter the value and provide the result at the same time and very fast.
JavaScript can be used online or offline too.
JavaScript provided much functionality such as when a customer searches anything, it completes the search automatically.