Expand Minimize

Array.tryFindIndex<'T> Function (F#)

Returns the index of the first element in the array that satisfies the given predicate.

Namespace/Module Path: Microsoft.FSharp.Collections.Array

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

// Signature:
Array.tryFindIndex : ('T -> bool) -> 'T [] -> int option

// Usage:
Array.tryFindIndex predicate array


Type: 'T -> bool

The function to test the input elements.


Type: 'T []

The input array.

The index of the first element that satisfies the predicate, or None.

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

Was this page helpful?
(1500 characters remaining)
Thank you for your feedback
© 2014 Microsoft