Garry's Mod Wiki

Home / History for Concepts - Boolean Values

Revision Difference

boolean#548583

<cat>Dev.Lua</cat>⤶ A true or false value.⤶ ⤶ Booleans are used to represent the outcome of a conditional statement. Provided below are some useful links:⤶ * [Booleans (PIL)](http://www.lua.org/pil/2.2.html)⤶ * <page text="If Statement Tutorial">Beginner_Tutorial_If_Then_Else</page>⤶ * [Logical Operators (PIL)](http://www.lua.org/pil/3.3.html)⤶ * [Operators tutorial](http://lua-users.org/wiki/OperatorsTutorial)⤶ ⤶ <example>⤶ <description>Demonstrates how conditional statements treat booleans.</description>⤶ <code>⤶ if false then print("Value is false!") end⤶ if true then print("Value is true!") end⤶ </code>⤶ <output>Value is true!</output>⤶ ⤶ </example>⤶ ⤶ ⤶ <example>⤶ <description>Inverting a boolean is often very useful. The easiest way to do that is to use the "not" operator.</description>⤶ <code>⤶ local bool = false⤶ if bool then⤶ print("Boolean is false, this code is not run!")⤶ end⤶ ⤶ // Boolean is now being inverted ( false -> true )⤶ bool = not bool⤶ ⤶ if bool then ⤶ print("Boolean has been inverted and is now true!")⤶ end⤶ ⤶ // This also works backwards. Note how "!" can be used in place of "not"⤶ bool = !bool⤶ ⤶ if bool then ⤶ print("Boolean is false again, and won't be printed!")⤶ end⤶ </code>⤶ <output>Boolean has been inverted and is now true!</output>⤶ ⤶ </example>

Account Management

Special Pages

Wiki List