Functions & closuresReference

islclosure

Identifies Luau closures.

Details#

Checks whether a value is a Luau closure. This describes its callable representation, not its origin or permissions. Non-functions return false.

islclosure(value: any): boolean

Parameter	Type	Description
`value`	`any`	Value to classify; non-functions return false.

A boolean classification of value.

print(islclosure(function() end)) -- true
print(islclosure(print)) -- false