API setmetatable

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Sets the metatable for the given table.

table = setmetatable(table [, metatable])

Arguments

table

table - The table to assign or remove the metatable of.

metatable

table? - The metatable to be assigned, or nil to remove an existing metatable.

Returns

table

table - The table passed in as the first argument.

Details

• The Lua 5.1 reference manual extensively documents the fields that can be set on a metatable.
• As a non-standard extension, metatables can contain an __environment field which impacts the behavior of getfenv.

Patch changes

Patch 1.1.0 (2004-11-07): Added.