Answer
Generators return values lazily using yield, reducing memory usage for large datasets.
Quick Answer
A generator is a function using yield instead of return. It produces values one at a time, pausing between each yield. The caller gets an Iterator without the function running to completion. Memory stays flat regardless of how many values - only one value exists at a time. Great for reading large files, paginating DB results, or building pipelines. Much more memory-efficient than returning full arrays.
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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