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Map.Item<'Key,'Value> Property (F#)

Den Delimarsky|Last Updated: 7/18/2016
|
1 Contributor

Lookup an element in the map. Raise System.Collections.Generic.KeyNotFoundException if no binding exists in the map.

Namespace/Module Path: Microsoft.FSharp.Collections

Assembly: FSharp.Core (in FSharp.Core.dll)

Syntax

// Signature:
member this.Item ('Key) : 'Value (requires comparison)

// Usage:
map.[key]

Parameters

key Type: 'Key

The input key.

Exceptions

ExceptionCondition
KeyNotFoundExceptionThrown when the key is not found.

Return Value

The value mapped to the key.

Platforms

Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2

Version Information

F# Core Library Versions

Supported in: 2.0, 4.0, Portable

See Also

Collections.Map<'Key,'Value> Class (F#)

Microsoft.FSharp.Collections Namespace (F#)

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