Essential Books

Union

suggest change 
var numbers1to5 = new[] {1,2,3,4,5};
var numbers4to8 = new[] {4,5,6,7,8};

var numbers1to8 = numbers1to5.Union(numbers4to8);

Console.WriteLine(string.Join(",", numbers1to8));

//1,2,3,4,5,6,7,8

Note that duplicates are removed from the result. If this is undesirable, use Concat instead.

Found a mistake? Have a question or improvement idea? Let me know.

Feedback about page:

Feedback:
Optional: your email if you want me to get back to you:

LINQ:
* LINQ
* SelectMany flat map
* Where filter
* Any
* GroupJoin
* ToLookup
* Except
* Zip
* Aggregate fold
* Concat
* Count
* Distinct
* Intersect
* SequenceEqual
* Min
* Cast
* All
* Sum
* Select map
* FirstOrDefault
* Take
* SingleOrDefault
* Reverse
* OfType
* Max
* Skip
* Average
* LastOrDefault
* Last
* GroupBy
* ToDictionary
* Union
* ToArray
* ToList
* Single
* ElementAt
* ElementAtOrDefault
* SkipWhile
* TakeWhile
* DefaultIfEmpty
* First find
* Contains
* Join
* OrderByDescending
* OrderBy
* Empty
* ThenBy
* Range
* Left Outer Join
* Repeat
Table Of Contents