Скачать или смотреть C# LINQ: First() vs FirstOrDefault() Explained

Ever wondered what the real difference is between First() and FirstOrDefault() in LINQ? In this video, I’ll break down both methods with practical examples so you’ll know exactly when and why to use each—and how to avoid unexpected runtime errors in your C# applications.

🔹 What You’ll Learn:
✅ The key difference between First() and FirstOrDefault()
✅ How each method behaves with empty collections
✅ When First() throws exceptions (and why)
✅ How FirstOrDefault() safely returns a default value (like 0 or null)
✅ Best practices for safer, more reliable LINQ queries

Quick Tip:
Use First() when you're sure the collection has at least one element

Use FirstOrDefault() when the collection might be empty and you want to avoid exceptions

This is an essential concept for any C# developer using LINQ to work with data collections.

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💬 Got questions or other LINQ topics you’d like covered? Drop them below!

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