How to check sequence equality ignoring order?

Short answer: How to check sequence equality ignoring order?

Explain a bit more

bool areEqual = employees.Select(e => e.Id).OrderBy(id => id) .SequenceEqual(anotherList.Select(e => e.Id).OrderBy(id => id)); How to check sequence equality ignoring order? bool areEqual = employees.Select(e => e.Id).OrderBy(id => id) .SequenceEqual(anotherList.Select(e => e.Id).OrderBy(id => id)); How to check sequence equality ignoring order? bool areEqual = employees.Select(e => e.Id).OrderBy(id => id) .SequenceEqual(anotherList.Select(e => e.Id).OrderBy(id => id)); How to check sequence equality ignoring order? bool areEqual = employees.Select(e => e.Id).OrderBy(id => id) .SequenceEqual(anotherList.Select(e => e.Id).OrderBy(id => id));

Real-world example (ShopNest)

ShopNest uses LINQ to query orders: filter by date, project to a summary DTO, and order by total—readable C# that becomes SQL under EF Core.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.