Difference between revisions of "Basic lua: Types"

From The Official Visionaire Studio: Adventure Game Engine Wiki
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| class="i_arrow clickablecell" |  [[basic_lua:_Operators|<]]
 
| class="i_arrow clickablecell" |  [[basic_lua:_Operators|<]]
 
| class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]'''
 
| class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]'''
| class="i_arrow clickablecell" | [[basic_lua:_Variables|>]]
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| class="i_arrow clickablecell" | [[basic_lua:_Tables|>]]
 
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== Types ==
 
== Types ==
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| class="i_arrow clickablecell" |  [[basic_lua:_Operators|<]]
 
| class="i_arrow clickablecell" |  [[basic_lua:_Operators|<]]
 
| class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]'''
 
| class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]'''
| class="i_arrow clickablecell" | [[basic_lua:_Variables|>]]
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| class="i_arrow clickablecell" | [[basic_lua:_Tables|>]]
 
|}{{toc}}
 
|}{{toc}}

Revision as of 19:14, 5 December 2020

There are multiple lua types available, which are automatically determined by the returned value of the variable, function or table.

< Index >

Types

boolean This returns a value of true or false.
function A function usually contains a list of actions to be executed & can often be used to calculate & return values.
nil If no data type is returned then whatever you queried is either empty or does not exist, thus it is nil.
number This usually contains an integer (whole) or floating point (decimal) number.
string This usually contains text or numbers wrapped in "quotation marks" or 'apostrophes'.
table This usually consists of an array, or multiple arrays of data & data types.
threads -
userdata -
Example 1: boolean
local a = true

print( a, type(a) )
click to enlarge
Example 2: function
function a(i)
 return i
end

print( a(7), type(a) )
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Example 3: nil
local a = nil

print( a, "  type = " .. type(a) )
print( b, "  type = " .. type(b) )
click to enlarge
Example 4: number
local a = 7

print( a, type(a) )
click to enlarge
Example 5: string
local a = "hello world"

print( a, type(a) )
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Example 6: table
local a = {1,1+1,1*3,2*2,20/4,"6",3.5*2,10-2}

print( a[1], a[2], a[3], a[4], a[5], a[6], a[7], a[8], type(a) )
click to enlarge
< Index >

Contents