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Collections
C# Collections
for loop (when using index)?
Short answer: for (int i = 0; i < fruits.Count; i++) { Console.WriteLine(fruits[i]); }
Example code
for (int i = 0; i < fruits.Count; i++)
{ Console.WriteLine(fruits[i]); }
Real-world example (ShopNest)
In ShopNest checkout, choose the collection by need: List for ordered cart lines, Dictionary for fast SKU lookup, HashSet for unique tags.
Say this in the interview
- Define — one clear sentence (the short answer above).
- Example — relate it to a project like ShopNest or your real work.
- Trade-off — when you would not use it.
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