Interview Question

What is LINQ?

LINQ provides typed query operators over sequences and provider-backed sources.

💡 Concept ✅ Quick Revision 🔷 C#

Answer

Language Integrated Query provides query syntax and operators for typed data sources. • Standard query operators include Where, Select, OrderBy, GroupBy, and Join. • LINQ to Objects executes delegates over IEnumerable sequences. • Other providers can translate expression trees into another query language.

💡 C# Example

int[] values = [1, 2, 3, 4]; var even = values.Where(value => value % 2 == 0); Console.WriteLine(string.Join(", ", even));

Output

2, 4

⚡ Quick Revision

LINQ provides typed query operators over sequences and provider-backed sources.