M_CodeJam_Collections_EnumerableExtensions_IsFirst__1

EnumerableExtensions.IsFirst(TSource) Method (IEnumerable(TSource), TSource)

Checks, if item is first element of source.

Namespace: CodeJam.Collections
Assembly: CodeJam (in CodeJam.dll) Version: 2.1.0.0

Syntax

C#

public static bool IsFirst<TSource>(
	this IEnumerable<TSource> source,
	TSource item
)

VB

<ExtensionAttribute>
Public Shared Function IsFirst(Of TSource) ( 
	source As IEnumerable(Of TSource),
	item As TSource
) As Boolean

F#

[<ExtensionAttribute>]
static member IsFirst : 
        source : IEnumerable<'TSource> * 
        item : 'TSource -> bool 

Parameters

 

source

Type: System.Collections.Generic.IEnumerable(TSource)
An IEnumerable(T) to check.

item

Type: TSource
Source item to compare with first element.

Type Parameters

 

TSource

The type of the elements of source.

Return Value

Type: Boolean
true, if source has at least one element and first element is equals to item, otherwise false.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable(TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

See Also

Reference

EnumerableExtensions Class
IsFirst Overload
CodeJam.Collections Namespace