loadstring

Takes a string of Luau source code, compiles it, and returns the compiled chunk as a function. Compiling doesn’t run the code - call the returned function to do that.

loadstring(source: string, chunkname: string?): function?, string?

Most commonly used to run a script hub fetched over HTTP in one line: loadstring(game:HttpGet(url))().

Parameters

Parameter	Type	Description
source	string	The Luau source code to compile.
chunkname	string?	Optional label that appears in stack traces and error messages. Defaults to a generated string.

Returns

(function, nil) on success, (nil, string) on failure.

Outcome	First return	Second return
Source compiled cleanly	callable function	nil
Syntax / compile error	nil	error message

Example

Fetch a script hub over HTTP and run it through loadstring(), guarding the compile so a syntax error in the fetched source warns you instead of failing silently:

Example 1

<<<<<<< HEAD
local fn = loadstring("print('hello')")
=======
-- loadstring(source: string, chunkname: string?): function?, string?
>>>>>>> 50e30f53759b0538759af25c9b271514aa2c9290

Does not execute bytecode; pass plain text Luau code.