Difference between revisions of "Basic lua: Functions"
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| class="i_arrow clickablecell" | [[basic_lua:_Tables|<]] | | class="i_arrow clickablecell" | [[basic_lua:_Tables|<]] | ||
| class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]''' | | class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]''' | ||
| − | | class="i_arrow clickablecell" | [[basic_lua: | + | | class="i_arrow clickablecell" | [[basic_lua:_Iteration_and_Loops|>]] |
|} | |} | ||
| + | <hr> | ||
| + | Functions can be really useful as they let us process/calculate huge amounts of data & return it, also if you include input arguments then they can potentially be reused multiple times over, which can reduce overall workload & increase workflow. | ||
| − | + | == Creating Functions == | |
| + | Below I am going to show you how to create your own custom functions. | ||
| − | == | + | === Classic Function === |
{| class="ts" | {| class="ts" | ||
|- | |- | ||
| − | ! | + | ! print hello world! !! |
|- | |- | ||
| style="max-width:680px;" | <syntaxhighlight lang="lua"> | | style="max-width:680px;" | <syntaxhighlight lang="lua"> | ||
| Line 22: | Line 25: | ||
|} | |} | ||
| + | === Variable as Function === | ||
{| class="ts" | {| class="ts" | ||
|- | |- | ||
| − | ! | + | ! print hello world! !! |
|- | |- | ||
| style="max-width:680px;" | <syntaxhighlight lang="lua"> | | style="max-width:680px;" | <syntaxhighlight lang="lua"> | ||
| − | function | + | hello = function() |
print("hello world!") | print("hello world!") | ||
end | end | ||
hello() | hello() | ||
| − | </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions) | + | </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_2.png|frameless|center|180px]] |
| + | |} | ||
| + | |||
| + | === Function with Input Arguments === | ||
| + | {| class="ts" | ||
| + | |- | ||
| + | ! print 6 !! | ||
| + | |- | ||
| + | | style="max-width:680px;" | <syntaxhighlight lang="lua"> | ||
| + | function plus(a, b) | ||
| + | return a + b | ||
| + | end | ||
| + | |||
| + | print( plus(2, 4) ) | ||
| + | </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_3.png|frameless|center|180px]] | ||
|} | |} | ||
| + | === Input Arguments and Fallback === | ||
| + | {| class="ts" | ||
| + | |- | ||
| + | ! print 0.5, 5 !! | ||
| + | |- | ||
| + | | style="max-width:680px;" | <syntaxhighlight lang="lua"> | ||
| + | function divideAndConquer(a, b, c) | ||
| + | c = c or 1 -- if c equals nil then c equals 1 | ||
| + | return (a / b) * c | ||
| + | end | ||
| + | |||
| + | print( divideAndConquer(2, 4) ) -- 2 ÷ 4 x 1 = 0.5 | ||
| + | print( divideAndConquer(2, 4, 10) ) -- 2 ÷ 4 x 10 = 5 | ||
| + | </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_4.png|frameless|center|180px]] | ||
| + | |} | ||
| + | <hr> | ||
{| class="in" | {| class="in" | ||
|- | |- | ||
| class="i_arrow clickablecell" | [[basic_lua:_Tables|<]] | | class="i_arrow clickablecell" | [[basic_lua:_Tables|<]] | ||
| class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]''' | | class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]''' | ||
| − | | class="i_arrow clickablecell" | [[basic_lua: | + | | class="i_arrow clickablecell" | [[basic_lua:_Iteration_and_Loops|>]] |
|}{{toc}} | |}{{toc}} | ||
Latest revision as of 16:45, 10 September 2022
| < | Index | > |
Functions can be really useful as they let us process/calculate huge amounts of data & return it, also if you include input arguments then they can potentially be reused multiple times over, which can reduce overall workload & increase workflow.
Creating Functions
Below I am going to show you how to create your own custom functions.
Classic Function
| print hello world! | |
|---|---|
function hello()
print("hello world!")
end
hello()
|
_1.png) |
Variable as Function
| print hello world! | |
|---|---|
hello = function()
print("hello world!")
end
hello()
|
_2.png) |
Function with Input Arguments
| print 6 | |
|---|---|
function plus(a, b)
return a + b
end
print( plus(2, 4) )
|
_3.png) |
Input Arguments and Fallback
| print 0.5, 5 | |
|---|---|
function divideAndConquer(a, b, c)
c = c or 1 -- if c equals nil then c equals 1
return (a / b) * c
end
print( divideAndConquer(2, 4) ) -- 2 ÷ 4 x 1 = 0.5
print( divideAndConquer(2, 4, 10) ) -- 2 ÷ 4 x 10 = 5
|
_4.png) |
| < | Index | > |
