Split array from a given range [duplicate]

Question

What is the C# code to split an array from a given range. Eg:

int[] arr = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}

I want to split arr it into two arrays. One from 0th to 5th index and the other from 6th to 20th index.

In Java Arrays.copyOfRange() can be used for this process. What is the C# code for this?

Since this is a duplicate i've answered there: stackoverflow.com/a/43491049/284240 In general Array.Copy is more efficient than enumerating the array until you are at given indexes and create a new with ToArray. For small arrays this is micro-optimization. But since the ugly Array.Copy is hidden in an extension method you don't need to care about readable code. — Tim Schmelter
– Tim Schmelter, Commented Apr 19, 2017 at 9:01

Dmitrii Bychenko · Accepted Answer · 2017-04-19 08:37:17Z

6

Try using Linq:

 using System.Linq;

 ...

 int[] arr = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};

 int[] head = arr.Take(5).ToArray();
 int[] tail = arr.Skip(5).ToArray();

answered Apr 19, 2017 at 8:37

Dmitrii Bychenko

188k20 gold badges178 silver badges231 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

ANJ Over a year ago

Thanks, what if I want to take elements from index 5 to index 10 and make a new array. Is there a direct method.

Dmitrii Bychenko Over a year ago

@ANJ: To take items from index 5 to 10 just combine Skip and Take: int[] middle = arr.Skip(5).Take(5).ToArray();

Collectives™ on Stack Overflow

Split array from a given range [duplicate]

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related