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• //Am I missing a reference in LinqPad?
//I get an error in LinqPad on line 9 below from Listing 2-14. Generate Logo commands to draw a //Serpinski triangle.linq:

//"CS0103 The name 'serpinskyTriangle' does not exist in the current context"
1. string serpinskiTriangle = "A";
2. Func transformA = x => x.Replace("A","B-A-B");
3. Func markBs = x => x.Replace("B","[B]");
4. Func transformB = x => x.Replace("[B]","A+B+A");
5. int length = 6;
6. Enumerable.Range(1,length)
7. .ToList()
8. .ForEach (k => serpinskiTriangle =
9. transformB(transformA(markBs(serpinskyTriangle))));

10. serpinskiTriangle
11. .Replace("A", "forward 5" + Environment.NewLine)
12. .Replace("B", "forward 5" + Environment.NewLine)
13. .Replace("+", "left 60" + Environment.NewLine)
14. .Replace("-", "right 60" + Environment.NewLine)
15. .Dump("LOGO Commands for drawing Serpinsky Triangle");
// Thanks!
// Gregg
April 19
• nescafe
It's a simple spelling error. serpinskyTriangle is not declared. serpinskiTriangle is (y=i). Please post your question in the Discussions section next time, it will be picked up sooner than in the Activity section

Result:
• nescafe
• nescafe
Image generated using https://www.calormen.com/jslogo/
• gmazel
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