Class ListExtensions

Provides extension methods for working with lists and collections.

Inheritance

object

ListExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: mk.helpers

Assembly: mk.helpers.dll

Syntax

public static class ListExtensions

Methods

AddRange<T>(List<T>, params T[])

Adds a range of items to the end of the list.

Declaration

public static void AddRange<T>(this List<T> list, params T[] items)

Parameters

Type	Name	Description
List<T>	list	The list to which items are added.
T[]	items	The items to be added.

Type Parameters

Name	Description
T	The type of elements in the list.

Batch<T>(IEnumerable<T>, int)

Batches the elements of a sequence into smaller sequences of a specified maximum size.

Declaration

public static IEnumerable<IEnumerable<T>> Batch<T>(this IEnumerable<T> items, int maxItems)

Parameters

Type	Name	Description
IEnumerable<T>	items	The sequence to be batched.
int	maxItems	The maximum number of items in each batch.

Returns

Type	Description
IEnumerable<IEnumerable<T>>	An IEnumerable of batches containing items from the input sequence.

Type Parameters

Name	Description
T	The type of elements in the sequence.

Batch<T>(IQueryable<T>, int)

Batches the elements of an IQueryable collection into smaller sequences of a specified size.

Declaration

public static IEnumerable<IQueryable<T>> Batch<T>(this IQueryable<T> collection, int size)

Parameters

Type	Name	Description
IQueryable<T>	collection	The IQueryable collection to be batched.
int	size	The size of each batch.

Returns

Type	Description
IEnumerable<IQueryable<T>>	An IEnumerable of IQueryable batches from the input collection.

Type Parameters

Name	Description
T	The type of elements in the collection.

Combinations<T>(List<T>)

Generates all combinations of the elements in the list.

Declaration

public static List<List<T>> Combinations<T>(this List<T> list)

Parameters

Type	Name	Description
List<T>	list	The list for which combinations are generated.

Returns

Type	Description
List<List<T>>	A List of Lists representing all combinations of the list's elements.

Type Parameters

Name	Description
T	The type of elements in the list.

Denullify<T>(IEnumerable<T>)

Removes null elements from the IEnumerable.

Declaration

public static IEnumerable<T> Denullify<T>(this IEnumerable<T> items)

Parameters

Type	Name	Description
IEnumerable<T>	items	The IEnumerable containing elements to be filtered.

Returns

Type	Description
IEnumerable<T>	An IEnumerable with null elements removed.

Type Parameters

Name	Description
T	The type of elements in the IEnumerable.

Median<T>(IEnumerable<T>)

Computes the median of a sequence of numbers.

Declaration

public static T Median<T>(this IEnumerable<T> source) where T : struct, IComparable

Parameters

Type	Name	Description
IEnumerable<T>	source	The sequence of numbers.

Returns

Type	Description
T	The median value, returned as the same type as the input.

Type Parameters

Name	Description
T	The numeric type of the elements in the sequence. Supported types are decimal, double, int, etc.

Exceptions

Type	Condition
InvalidOperationException	Thrown if the source sequence is null or empty.

Mode<T>(IEnumerable<T>)

Computes the mode(s) of a sequence of elements, i.e., the element(s) that appear most frequently.

Declaration

public static IEnumerable<T> Mode<T>(this IEnumerable<T> source)

Parameters

Type	Name	Description
IEnumerable<T>	source	The sequence of elements.

Returns

Type	Description
IEnumerable<T>	An IEnumerable containing the mode(s) of the sequence. If there is more than one mode, all modes are returned; if no mode exists (all elements are unique), all elements are returned.

Type Parameters

Name	Description
T	The type of the elements in the sequence.

Exceptions

Type	Condition
InvalidOperationException	Thrown if the source sequence is null or empty.

Permutations<T>(List<T>)

Generates all permutations of the elements in the list.

Declaration

public static List<List<T>> Permutations<T>(this List<T> list)

Parameters

Type	Name	Description
List<T>	list	The list for which permutations are generated.

Returns

Type	Description
List<List<T>>	A List of Lists representing all permutations of the list's elements.

Type Parameters

Name	Description
T	The type of elements in the list.

Permutations<T>(List<T>, int)

Generates permutations of a specified length from the elements in the list.

Declaration

public static List<List<T>> Permutations<T>(this List<T> list, int length)

Parameters

Type	Name	Description
List<T>	list	The list for which permutations are generated.
int	length	The length of permutations to generate.

Returns

Type	Description
List<List<T>>	A List of Lists representing permutations of the specified length.

Type Parameters

Name	Description
T	The type of elements in the list.