Difference between revisions of "Loadstring"
From GiderosMobile
m (Text replacement - "</source>" to "</syntaxhighlight>") |
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| Line 9: | Line 9: | ||
</syntaxhighlight> | </syntaxhighlight> | ||
| − | To load and run a given string, use the idiom: | + | Loadstring is used mainly by some scripts and by the majority of exploiting scripts. |
| + | It runs the ''string'' given inside its brackets as code. To load and run a given string, use the idiom: | ||
''assert(loadstring(s))()'' | ''assert(loadstring(s))()'' | ||
| Line 21: | Line 22: | ||
=== Return values === | === Return values === | ||
'''Returns''' (function) compiled chunk as a function, otherwise returns nil<br/> | '''Returns''' (function) compiled chunk as a function, otherwise returns nil<br/> | ||
| + | |||
| + | === Examples === | ||
| + | <syntaxhighlight lang="lua"> | ||
| + | local test = loadstring("print('Hello world!')") | ||
| + | test() --> Hello world! | ||
| + | -- same as above | ||
| + | local test = loadstring("print('Hello world!')")() | ||
| + | |||
| + | -- a calculator | ||
| + | local mathStuff = "5+5*3" | ||
| + | local resultOfMath = loadstring("return "..mathStuff)() | ||
| + | print(resultOfMath) | ||
| + | |||
| + | -- run string as code | ||
| + | local Code = "print('I love loadstrings!')" | ||
| + | loadstring(Code)() | ||
| + | </syntaxhighlight> | ||
{{(global)}} | {{(global)}} | ||
Latest revision as of 15:34, 2 February 2025
Available since: Gideros 2011.6
Class: (global)
Description
Gets the chunk from the given string.
(function) = loadstring(string,chunkname)
Loadstring is used mainly by some scripts and by the majority of exploiting scripts. It runs the string given inside its brackets as code. To load and run a given string, use the idiom:
assert(loadstring(s))()
Chunkname is used as the chunk name for error messages and debug information. When absent, chunkname defaults to the given string.
Parameters
string: (string) string to load and compile
chunkname: (string) is used as the chunk name for error messages and debug information optional
Return values
Returns (function) compiled chunk as a function, otherwise returns nil
Examples
local test = loadstring("print('Hello world!')")
test() --> Hello world!
-- same as above
local test = loadstring("print('Hello world!')")()
-- a calculator
local mathStuff = "5+5*3"
local resultOfMath = loadstring("return "..mathStuff)()
print(resultOfMath)
-- run string as code
local Code = "print('I love loadstrings!')"
loadstring(Code)()
