MoreLINQ
De Banane Atomic
Aller à la navigationAller à la recherche
Links
Add the package to a project
|
dotnet add package MoreLINQ |
Operators
Aggregate
Batch
Batches the source sequence into sized buckets.
|
Enumerable
.Range(1, 10)
.Batch(3); // split the sequence into sequences of max length 3
// [1, 2, 3]
// [4, 5, 6]
// [7, 8, 9]
// [10]
|
Cartesian
Returns the Cartesian product of two or more sequences by combining each element from the sequences and applying a user-defined projection to the set.
|
|
new[] { "A", "B" }
.Cartesian(
new[] { 1, 2 },
(x, y) => $"{x}{y}");
// A1
// A2
// B1
// B2
|
DistinctBy
Returns all distinct elements of the given source, where "distinctness" is determined via a projection and the default equality comparer for the projected type.
|
|
var items = new[]
{
new { Id = 1, Name = "One" },
new { Id = 2, Name = "Two" },
new { Id = 3, Name = "One" },
new { Id = 2, Name = "Two again" }
};
items.DistinctBy(x => x.Id); // 1 2 3
items.DistinctBy(x => x.Name); // 1 2 2
|
ExceptBy
Returns the set of elements in the first sequence which aren't in the second sequence, according to a given key selector.
|
|
var items2 = new[]
{
new { Id = 2, Name = "One" }
};
items.ExceptBy(items2, x => x.Id); // 1 3
items.ExceptBy(items2, x => x.Name); // 2 2
|
FallbackIfEmpty
Returns the elements of a sequence and falls back to another if the original sequence is empty.
|
|
var integers = Array.Empty<int>();
integers.FallbackIfEmpty(new[] { 1, 2 });
integers.FallbackIfEmpty(1); // int[] { 1 }
integers.FallbackIfEmpty(1, 2); // int[] { 1, 2 }
|
