Garry's Mod Wiki

nil

nil is Lua's representation of empty data. Unset variables and non-existent table keys will be nil. This will be treated as false in if-statement contexts, but is not equal to false.

Example:

print(nil) print(nil == 0) print(nil == 1) print(nil == nil) print(!nil) --because nil can be treated like a false boolean in some cases, "not nil" will equal true local myEmptyVariable --a variable with nothing in it (a 'nil' value) print(myEmptyVariable) local myTable = {a="foo", b="bar"} myTable["a"] = nil --setting a value in a table to nil effectively erases it from the table PrintTable(myTable)

Output:
nil
false
false
true
true
nil
b = bar

Application in VGUI

You can use nil to make some VGUI element transparent.

Example Code

local menu = vgui.Create( 'DFrame' ) menu:SetSize( 300, 200 ) menu:Center() menu:MakePopup() menu:SetTitle( 'Made by Freline' ) local panel = vgui.Create( 'DPanel', menu ) panel:Dock( FILL ) panel.Paint = nil

Page Links


Special Pages


Wikis

?

Render Time: 22ms

DB GetPage 3
Generate Html 1
SaveChanges (1) 8
Render Body 0
Render Sidebar 7