View source for Bool

{{CatUp|Properties}}

== Introduction ==
A Bool, or Boolean Value is a <b>true</b> or <b>false</b> value. In Lua, either the value is <b>true</b>, or it is <b>false</b>/<b>nil</b>. When trying to change this value in code, use a <b>true</b> or a <b>false</b> variable.

These variables show up as a checkbox in the Properties window. <b>True</b> is a checked box, <b>false</b> is an unchecked box.

== Examples ==
<pre>
x = true
print(x)
Will result in:
true

x = true
print(not x)
Will result in:
false

print(not false)
Will result in:
true
</pre>

Boolean values are used to represent the results of logic tests. The equals ==, and not equals ~= operators will return boolean values depending on the values supplied to them. 
<pre>
print(1 == 0) -- test whether two numbers are equal
Will result in:
false

print(1 == 1)
Will result in:
true

print(1 ~= 0) -- test whether two numbers are not equal
Will result in:
true

print(true ~= false) -- is true not equal to false?
Will result in:
true
</pre>


== See Also ==

[[RBX.lua.BoolValue (Object)]]

[http://www.lua.org/pil/2.2.html Programming in Lua 2.2: Booleans]

[http://lua-users.org/wiki/LuaTypesTutorial Lua Types Tutorial]

[[Category:Properties]]