Lua data types

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“Lua data types”
Prepared by: S. S. Kochetkov
ИФИмд-19

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OUTLINE
1. Basic Lua data types
2. Using of different types of data
3. Type conversion
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PURPOSE
• to convey to the audience full information about lua data
types in a convenient form, to study the data types that lua
gives, to learn how to use variables of various types and
convert them to each other.
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Semicolon
“a camel is a horse developed by a committee”
;
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The First Point: Basic Lua data types
Type
nil
boolean
number
string
table
function
userdata
thread
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Example
a = nil
b = true
n=1
s = 'abc'
t = {a, b, c}
foo = function(x) return 2*x end
u = some_C_struct
co = coroutine.create( function () print("hi") end)

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The Second Point:
Using of different types of data
Boolean
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The Second Point:
Using of different types of data
Number
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The Second Point:
Using of different types of data
String
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The Second Point:
Using of different types of data
String
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The Second Point: Using of different types of data
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The Second Point:
Using of different types of data
Table
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The Second Point:
Using of different types of data
Table
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The Second Point:
Using of different types of data
Table
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The Second Point:
Using of different types of data
Table
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The Second Point:
Using of different types of data
Function
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The Second Point:
Using of different types of data
Function
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The Second Point:
Using of different types of data
Function
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The Third Point: Type conversion
To boolean
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The Third Point: Type conversion
To number
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The Third Point: Type conversion
To string
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SUMMARY
1. There are eight basic types in
Lua: nil, boolean, number, string, userdata, function, threa
d, and table.
2. Variables have no predefined types - any variable may
contain values of any type
3. Lua has its own type conversion system.
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CONCLUSION
Remember the features of data types in lua
Consider type conversion mechanisms when writing programs
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References
Programming in Lua (first edition) (eng) - is a detailed and
authoritative introduction to all aspects of Lua programming
written by Lua's chief architect
tutorialspoint.com (eng) – is online tutorial for self-study
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Thanks for attention
Contacts
[email protected]
+79779502335
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