isfunctionhooked Synchronous

Check whether a function currently has a live hook. Use it before restoring a hook when the same cleanup path may run twice.

Syntax

Luau

isfunctionhooked(value: Function) -> boolean

Parameters

Function parameters
Parameter	Type	Description
`value`	`Function`	The function to inspect. Passing a non-function raises an error.

Returns

boolean

true while a hook is active; false after its logical restoration.

Example

Luau

local target = newcclosure(function(n) return n end)
local previous
previous = hookfunction(target, function(n) return previous(n) + 1 end)
print(isfunctionhooked(target)) -- true
restorefunction(target)
print(isfunctionhooked(target)) -- false