Seq.find<'T> Function (F#)
Returns the first element for which the given function returns true.
Namespace/Module Path: Microsoft.FSharp.Collections.Seq
Assembly: FSharp.Core (in FSharp.Core.dll)
// Signature:
Seq.find : ('T -> bool) -> seq<'T> -> 'T
// Usage:
Seq.find predicate source
Parameters
predicate
Type: 'T ->boolA function to test whether an item in the sequence should be returned.
source
Type: seq<'T>The input sequence.
Exceptions
Exception |
Condition |
|---|---|
Thrown when the input sequence is null |
|
Thrown if no element returns true when evaluated by the predicate |
Return Value
Returns the first element for which the given function returns true.
Remarks
This function is named Find in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.
Example
The following code example shows how to use Seq.find.
let isDivisibleBy number elem = elem % number = 0
let result = Seq.find (isDivisibleBy 5) [ 1 .. 100 ]
printfn "%d " result
Output
5
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