_G's newproxy and select?

[PA <petite.abeille@...>]

Hello,

The global table ("_G") defines several core functions:

print( LUModule.moduleWithName( "_G" ).functionNames().toString() )

--> { "assert", "collectgarbage", "dofile", "error", "gcinfo", 
"getfenv", "getmetatable", "ipairs", "load", "loadfile", "loadlib", 
"loadstring", "module", "newproxy", "next", "pairs", "pcall", "print", 
"rawequal", "rawget", "rawset", "require", "select", "setfenv", 
"setmetatable", "tonumber", "tostring", "type", "unpack", "xpcall" }

I heard of most of them, except "newproxy" and "select". What are 
those? Are they documented somewhere?

Thanks!

Cheers

--
PA, Onnay Equitursay
http://alt.textdrive.com/