# Method Global:GetMapById [-] [+]

Returns a Map by ID.

In multistate, this method is only available in the WORLD state

## Synopsis

`map = GetMapById( mapId )`

`map = GetMapById( mapId, instanceId )`

## Arguments

`number mapId`

  See Map.dbc.

  Valid numbers: integers from 0 to 4,294,967,295.

`number instanceId (0)`

  Required if the map is an instance, otherwise don't pass anything.

  Valid numbers: integers from 0 to 4,294,967,295.

## Returns

`Map map`

  The Map, or `nil` if it doesn't exist.

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