isreadonly

Reads or sets a table read-only state.

Syntax

isreadonly(table: table) -> boolean

Parameters

Parameter	Type	Description
`table`	`table`	The table value used by the call.

Returns

Type	Description
`boolean`	The boolean result of the check.

Description

isreadonly is part of the Metatables library. Metatable helpers operate below normal Lua protection: they read raw metatables, replace metamethods and inspect namecalls.

The call is a predicate: it inspects the current state and returns a boolean without modifying anything.

The aliases setreadonly(table, readonly) resolve to the same implementation.

Example

local t = {}
setreadonly(t, true)
print(isreadonly(t))

Notes

Aliases: setreadonly(table, readonly).
Metatable changes are applied directly to the live object.