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Iterators in C#: yield return

Sequences that produce values only when someone asks for them — and the surprises that come with it.

Fundamentals

3 modules: What foreach Really Does, Your First yield return, Nothing Runs Until You Ask.

Use-case Modules

2 modules: Every foreach Starts Over, Sequences Without End.

Production Ready

2 modules: Where yield Is Not Allowed, Iterators That Wait.

01-03Fundamentals

What foreach Really Does

2 lessons2 tasks

Your First yield return

2 lessons2 tasks

Nothing Runs Until You Ask

2 lessons3 tasks

04-05Use-case Modules

Every foreach Starts Over

2 lessons3 tasks

Sequences Without End

2 lessons3 tasks

06-07Production Ready

Where yield Is Not Allowed

2 lessons2 tasks

Iterators That Wait

2 lessons2 tasks

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