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

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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

Parameters

  • predicate
    Type: 'T ->bool

    The function to test the input elements.

  • array
    Type: 'T[]

    The input array.

Return Value

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

Remarks

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.

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

See Also

Reference

Collections.Array Module (F#)

Microsoft.FSharp.Collections Namespace (F#)