How can you remove all items from a Dictionary? Follow:

Short answer: Use the Clear() method to remove all key-value pairs.

Explain a bit more

dictionary.Clear(); This resets the dictionary to an empty state. 📘 C# Queue<T> – Interview Questions &amp; Use the Clear() method to remove all key-value pairs. dictionary.Clear(); This resets the dictionary to an empty state. 📘 C# Queue<T> – Interview Questions &amp; Use the Clear() method to remove all key-value pairs. dictionary.Clear(); This resets the dictionary to an empty state. 📘 C# Queue<T> – Interview Questions &amp; Use the Clear() method to remove all key-value pairs. dictionary.Clear(); This resets the dictionary to an empty state. 📘 C# Queue<T> – Interview Questions &amp;

Real-world example (ShopNest)

ShopNest caches product prices in a Dictionary<string, decimal> keyed by SKU so checkout can look up a price in O(1) instead of scanning a list.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.