# Jagged array of 2D array

**URL:** <https://www.ruby-forum.com/t/jagged-array-of-2d-array/205456>\
**Category:** IronRuby\
**Created:** [April 7, 2011, 12:44am UTC](https://www.ruby-forum.com/t/jagged-array-of-2d-array/205456 "2011-04-07T00:44:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![luislavena](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/0ea827/32.png) [@luislavena](https://www.ruby-forum.com/u/luislavena)\
**Post date:** [April 7, 2011, 12:44am UTC](https://www.ruby-forum.com/t/jagged-array-of-2d-array/205456/1 "2011-04-07T00:44:51Z")

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Hi

I have a question about object creation of jagged array in IronRuby.

* * *

C#

double[][] csArray0 = new double[100][];  
double[][,] csArray1 = new double[100][,];

IronRuby

## irArray0 = System::Array.CreateInstance(System::Array.of(System::Double).to\_clr\_type,100) irArray1 = ???

“csArray0” is a simple jagged array, so I could find the corresponding  
code(“irArray0”).  
“csArray1” is a jagged array of 2D array. I’d like to create  
“csArray1” object in IronRuby.  
Can someone help?

Mikami