hookfunction

Replaces the behavior of a target function with a replacement function and returns a callable copy of the original behavior. Both arguments must be functions.

Syntax

hookfunction(target: function, replacement: function): function

Aliases

hookfunc
replaceclosure
detourfunction
detour_function

Arguments

Name	Type	Required	Description
`target`	`function`	Yes	Function to patch. Passing a non-function raises a type error.
`replacement`	`function`	Yes	Function whose function is installed into or mapped onto target. Passing a non-function raises a type error.

Returns

Name	Type	Description
`original`	`function`	Callable copy of the original target behavior before the hook was installed.

Example

Patch a function closure and keep a cloned original.

local function target(value)
    return value + 1
end

local original
original = hookfunction(target, function(value)
    return original(value) * 2
end)

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Syntax

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Example

​Syntax

​Aliases

​Arguments

​Returns

​Example

Syntax

Aliases

Arguments

Returns

Example