Java script is a scripting and dynamic language which was used in building a webpages with the required functions.
In short form , Java script is termed as "JS", which is also named as livescript. Which is first released by Netscape 2.0.
JS was initially designed by the Brendan Eich and it was first appeared in 1995.
It is used for both frond end and back end application purpose.
Count down for a website, setting a timer, performing the zoom in and zoom out are the few examples where JS is used.