A Javascript or JS file is a computer programming language. This file is not to be confused with the Java programming language. JS is a text file that is mostly used as part of a web browser.
Brendan Eich was the original developer of Javascript. He created this language when he worked at Netscape. It was intended for the Netscape web browser but became much more successful. Microsoft adopted this language by releasing Javascript in 1996 on their Internet Explorer web browser. Microsoft ended up creating something similar to Javascript with fewer problems. It is called Jscript.
In addition to the problem described above, i.e. the lack of the appropriate application to support the .JS file, there may be several reasons that cause problems with opening and operation of the data format:
A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .JS file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .JS file, so download the update and check again.
If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:
It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.
There may be several reasons why you cannot open the file with .JS extension. Directly on this website you can find a solution of the most common problem with the .JS file – that you do not have on your computer the appropriate program to open the file.