Removed in LÖVE 0.9.0  
 It has been moved to Joystick:getAxisCount. 
 Returns the number of axes on the joystick. 
axes = love.joystick.getNumAxes( joystick )
number joysticknumber axes
 
    © 2006–2016 LÖVE Development Team
Licensed under the GNU Free Documentation License, Version 1.3.
    https://love2d.org/wiki/love.joystick.getNumAxes