C Sharp (C#) - LINQ Fundamentals
Which aggregate function in C# is used to find how many items are in a list?
Which aggregate function in C# is used to find how many items are in a list?
easy🧠 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the purpose of Count
The Count function returns the number of elements in a collection.Step 2: Compare with other aggregate functions
Sum adds values, Average calculates mean, Max finds the largest value, so they do not count items.Final Answer:
Count -> Option AQuick Check:
Count = number of items [OK]
Quick Trick: Count counts items, Sum adds, Average finds mean [OK]
Common Mistakes:
MISTAKES- Confusing Sum with Count
- Using Average to count items
- Thinking Max counts items
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