Set.union<'T> Function (F#)
Computes the union of the two sets.
Namespace/Module Path: Microsoft.FSharp.Collections.Set
Assembly: FSharp.Core (in FSharp.Core.dll)
// Signature:
Set.union : Set<'T> -> Set<'T> -> Set<'T> (requires comparison)
// Usage:
Set.union set1 set2
Parameters
Return Value
The union of set1 and set2.
Remarks
This function is named Union in the compiled assembly. If you are accessing the function from a language other than F#, or through reflection, use this name.
Example
The following code illustrates the use of the Set.union function.
let set1 = Set.ofList [ 2 .. 2 .. 8 ]
let set2 = Set.ofList [ 1 .. 2 .. 9 ]
let set3 = Set.union set1 set2
printfn "%A union %A yields %A" set1 set2 set3
Output
set [2; 4; 6; 8] union set [1; 3; 5; 7; 9] yields set [1; 2; 3; 4; 5; 6; 7; 8; 9]
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