Set.Contains<'T> Method (F#)

A useful shortcut for Set.contains. See the Set module for further operations on sets.

Namespace/Module Path: Microsoft.FSharp.Collections

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

// Signature:
member this.Contains : 'T -> bool (requires comparison)

// Usage:
set.Contains (value)


  • value
    Type: 'T

    The value to check.

Return Value

True if the set contains value.


Windows 7, Windows Vista SP2, Windows XP SP3, Windows XP x64 SP2, Windows Server 2008 R2, Windows Server 2008 SP2, Windows Server 2003 SP2

Version Information

F# Runtime

Supported in: 2.0, 4.0


Supported in: 3

See Also


Collections.Set<'T> Class (F#)

Microsoft.FSharp.Collections Namespace (F#)