Returns true when two closures are equivalent, meaning they run the same bytecode with the same captured state, even if they are distinct objects that == reports as unequal.

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Parameters

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function
required
The first closure.
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function
required
The second closure.

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Returns

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boolean
true if the two closures are equivalent.

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Behavior

Equivalence is decided on what the closures actually are, not on identity:
  • Both must be the same kind: both C closures, or both Luau closures.
  • C closures match when they share the same native function and the same upvalue values.
  • Luau closures match when they share the same proto and the same upvalue values.
This is what makes it useful after clonefunction: a clone is ~= to its source under ==, but comparefunctions confirms they are still the same function.

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Example

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Errors