how to compress js files?

[sanjay rathod]

Please refer - http://web.guru99.com/perl-subroutines/ I am calling the filehttp://code.guru99.com/perl/perl.js inside the corresponding wordpress post. The file is 750KB in size I am using WP Super cache but it does not cache or compress this file (maybe since it’s called in the post section) How can I compress and cache this file before serving to the end user ?