Minifying a javascript library

[Jonathan Underwood]

Hi,

I am trying to package up the java script library web-socket-js in
order to unbundle it from xpra (currently under review). The
javascript packaging guidelines[1] require that "If a JavaScript
library typically is shipped as minified or compiled code, it must be
compiled or minified as part of the RPM build process." I am not at
all familiar with java script  - what is the recommended tool for
minifying .js files?

Thanks,
Jonathan


[1] http://fedoraproject.org/wiki/Packaging:JavaScript