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What does the OrderBy method do in C#?

easy🧠 Conceptual Q11 of Q15
C Sharp (C#) - LINQ Fundamentals
What does the OrderBy method do in C#?
ASorts a collection in ascending order based on a key
BDeletes elements from a list
CReverses the order of elements in a list
DFilters elements based on a condition
Step-by-Step Solution
Solution:
  1. Step 1: Understand the purpose of OrderBy

    The OrderBy method sorts elements in a collection based on a key in ascending order.
  2. Step 2: Compare with other options

    Options B, C, and D describe different operations (deletion, reversing, filtering) which OrderBy does not perform.
  3. Final Answer:

    Sorts a collection in ascending order based on a key -> Option A
  4. Quick Check:

    OrderBy = Sort ascending [OK]
Quick Trick: OrderBy sorts ascending by key, not filtering or deleting [OK]
Common Mistakes:
MISTAKES
  • Confusing OrderBy with filtering methods like Where
  • Thinking OrderBy modifies the original list
  • Mixing up OrderBy with reversing or deleting

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