Answer
IEnumerable: Represents a collection that can be iterated.
IEnumerator: Performs step-by-step iteration over the collection.
Quick Answer
IEnumerable is the collection — it exposes GetEnumerator() which returns an IEnumerator. IEnumerator is the cursor that walks through items — it has MoveNext(), Current, and Reset(). You implement IEnumerable on your class so it works with foreach. You rarely deal with IEnumerator directly.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ