Difference between revisions of "Basic lua: Types"
From The Official Visionaire Studio: Adventure Game Engine Wiki
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| − | | boolean || width="90%" | This returns a value of '''true''' or '''false'''. | + | | <span class="vsyellow">boolean</span> || width="90%" | This returns a value of '''true''' or '''false'''. |
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| − | | function || A function usually contains a list of actions to be executed & can often be used to calculate & return values. | + | | <span class="vsyellow">function</span> || A function usually contains a list of actions to be executed & can often be used to calculate & return values. |
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| − | | nil || If no data type is returned then whatever you queried is either empty or does not exist, thus it is '''nil'''. | + | | <span class="vsyellow">nil</span> || If no data type is returned then whatever you queried is either empty or does not exist, thus it is '''nil'''. |
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| − | | number || This usually contains an integer (whole) or floating point (decimal) number. | + | | <span class="vsyellow">number</span> || This usually contains an integer (whole) or floating point (decimal) number. |
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| − | | string || This usually contains text or numbers wrapped in "quotation marks" or 'apostrophes'. | + | | <span class="vsyellow">string</span> || This usually contains text or numbers wrapped in "quotation marks" or 'apostrophes'. |
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| − | | table || This usually consists of an array, or multiple arrays of data & data types. | + | | <span class="vsyellow">table</span> || This usually consists of an array, or multiple arrays of data & data types. |
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{| class="ts" | {| class="ts" | ||
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| − | ! boolean | + | ! boolean !! |
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| <syntaxhighlight lang="lua"> | | <syntaxhighlight lang="lua"> | ||
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| − | ! function | + | ! function !! |
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| − | ! nil | + | ! nil !! |
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| − | ! number | + | ! number !! |
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{| class="ts" | {| class="ts" | ||
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| − | ! string | + | ! string !! |
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{| class="ts" | {| class="ts" | ||
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| − | ! table | + | ! table !! |
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| <syntaxhighlight lang="lua"> | | <syntaxhighlight lang="lua"> | ||
Revision as of 01:44, 3 September 2022
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. |
| boolean | |
|---|---|
local a = true
print( a, type(a) )
|
_1.png) |
| function | |
|---|---|
function a(i)
return i
end
print( a(7), type(a) )
|
_2.png) |
| nil | |
|---|---|
local a = nil
print( a, " type = " .. type(a) )
print( b, " type = " .. type(b) )
|
_3.png) |
| number | |
|---|---|
local a = 7
local b = 7.25
print( a, type(a) )
print( b, type(b) )
|
_4.png) |
| string | |
|---|---|
local a = "hello world"
print( a, type(a) )
|
_5.png) |
| 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) )
|
_6.png) |
| < | Index | > |
