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Seq.tryFindIndex<'T> Function (F#)
Attempts to find the first element that satisfies a given predicate, and returns the index of the matching element.
Namespace/Module Path: Microsoft.FSharp.Collections.Seq
Assembly: FSharp.Core (in FSharp.Core.dll)
Seq.tryFindIndex : ('T -> bool) -> seq<'T> -> int option
Seq.tryFindIndex predicate source
Type: 'T -> bool
A function that evaluates to a Boolean when given an item in the sequence.
The input sequence.
Returns the index of the first element in the sequence that satisfies the given predicate, or None if no such element exists.
This function is named TryFindIndex in compiled assemblies. If you are accessing the function from a language other than F#, or through reflection, use this name.
Windows 8, Windows 7, Windows Server 2012, Windows Server 2008 R2
F# Core Library Versions
Supported in: 2.0, 4.0, Portable
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