Hello World in lua for mpv

1. Save the script below(e.g. hello.lua) in ~/.config/mpv/scripts/ folder. If scripts folder doesn't exist, create it.
2. Play a video with mpv.
3. While the video is playing, press g key. It will print Hello World on your terminal

require 'os'
require 'io'
require 'string'
 
function print_hello_world()
    print("Hello World")
end
 
-- Set key bindings.
mp.add_key_binding("g", "print_hello_world", print_hello_world)

Here is a video showing the code above in action.

What next?

• Implement a class in lua
• Lua 5.3 Reference Manual