Basic lua: Functions - Revision history

AFRLme at 14:45, 10 September 2022

2022-09-10T14:45:01Z

2022-09-03T01:20:40Z

2022-09-03T00:59:23Z

2022-09-03T00:57:39Z

2022-09-03T00:48:57Z

2022-09-03T00:48:11Z

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2022-09-03T00:14:08Z

@@ Line 3: / Line 3: @@
 | class="i_arrow clickablecell" |  [[basic_lua:_Tables|<]]
 | class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]'''
-| class="i_arrow clickablecell" | [[basic_lua:_Functions|>]]
+| class="i_arrow clickablecell" | [[basic_lua:_Iteration_and_Loops|>]]
 |}
 <hr>
@@ Line 73: / Line 73: @@
 | class="i_arrow clickablecell" |  [[basic_lua:_Tables|<]]
 | class="i_norm clickablecell" | '''[[basic_lua:_Index|Index]]'''
-| class="i_arrow clickablecell" | [[basic_lua:_Functions|>]]
+| class="i_arrow clickablecell" | [[basic_lua:_Iteration_and_Loops|>]]
 |}{{toc}}

@@ Line 5: / Line 5: @@
 | class="i_arrow clickablecell" | [[basic_lua:_Functions|>]]
 |}
+<hr>
-Tables are one of the features of Lua script, that make the scripting language so dynamic & easy to use, as they allow us to easily create tables, insert, remove & sort data. Tables are often comprised of arrays that usually involve keywords - or an index number - & a value. Tables can be accessed using multiple different methods.
+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 ==
@@ Line 68: / Line 68: @@
 </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_4.png|frameless|center|180px]]
 |}
+<hr>
 {| class="in"
 |-

@@ Line 64: / Line 64: @@
 end
-print( divideAndConquer(2, 4) ) -- 2 ÷ 4 = 0.5
+print( divideAndConquer(2, 4) ) -- 2 ÷ 4 x 1 = 0.5
-print( divideAndConquer(2, 4, 10) ) -- 0.5 x 10 = 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]]
 |}

@@ Line 53: / Line 53: @@
 |}
-== Reserved Functions ==
+=== Input Arguments and Fallback ===
 {| class="in"

@@ Line 14: / Line 14: @@
 {| class="ts"
 |-
-! returns hello world! !!
+! print hello world! !!
 |-
 | style="max-width:680px;" | <syntaxhighlight lang="lua">
@@ Line 28: / Line 28: @@
 {| class="ts"
 |-
-! returns hello world! !!
+! print hello world! !!
 |-
 | style="max-width:680px;" | <syntaxhighlight lang="lua">
@@ Line 42: / Line 42: @@
 {| class="ts"
 |-
-! returns 6 !!
+! print 6 !!
 |-
 | style="max-width:680px;" | <syntaxhighlight lang="lua">

@@ Line 11: / Line 11: @@
 Below I am going to show you how to create your own custom functions.
-=== Declare Function ===
+=== Classic Function ===
 {| class="ts"
 |-

@@ Line 52: / Line 52: @@
 </syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_3.png|frameless|center|180px]]
 |}
 {| class="in"

@@ Line 22: / Line 22: @@
 hello()
-</syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_2.png|frameless|center|180px]]
+</syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_1.png|frameless|center|180px]]
 |}
@@ Line 31: / Line 31: @@
 |-
 | style="max-width:680px;" | <syntaxhighlight lang="lua">
-function hello()
+hello = function()
   print("hello world!")
 end
 hello()
-</syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_1.png|frameless|center|180px]]
+</syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_2.png|frameless|center|180px]]
 |}

@@ Line 1: / Line 1: @@
 {| class="in"
 |-
@@ Line 6: / Line 5: @@
 | class="i_arrow clickablecell" | [[basic_lua:_Functions|>]]
 |}
 == Creating a function ==
 {| class="ts"
 |-
-! method 1: automatically generated index values !!
+! method 1: function operator !!
 |-
 | style="max-width:680px;" | <syntaxhighlight lang="lua">
-local t = {1, 2, 3, 4, 5, "six", 7, "ate", 9} -- automatically assigns an index number to each value starting from 1
+function hello()
-local str = "" -- empty string
+ print("hello world!")
-for i = 1, #t do -- for 1 to table total, print value of index number
+hello()
- str = str .. t[i] -- add current table index value to existing text data in the str variable
+</syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_1.png|frameless|center|180px]]
- if i < #t then str = str .. ", " end -- if i is less than table entry total then insert ", " into the str variable
+|}
 end
-print("table data: " .. str) -- print the table data
+hello()
-print( "table entry total: " .. #(t) ) -- print total of table entries
+</syntaxhighlight> || width="180px" style="vertical-align:middle;" | [[File:Basic_lua_(functions)_1.png|frameless|center|180px]]
 |}