juniorLINQ
What is Where clause in LINQ?
Updated May 16, 2026
Short answer
Where filters elements based on a condition.
Deep explanation
It evaluates a predicate for each element and returns only those that match the condition.
Real-world example
Filtering active orders in an e-commerce system.
Common mistakes
- Using Where after materializing data unnecessarily.
Follow-up questions
- Is Where deferred?
- Can multiple Where clauses be chained?