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Library/Backend/Ruby
Medium Pro#ruby

Lazy Enumerator trong Ruby là gì và khi nào nên sử dụng?

February 15, 2026

Quick summary

A Lazy Enumerator (`Enumerator::Lazy`) delays the evaluation of collection elements until they are actually needed, allowing you to process massive or infinite datasets without consuming memory for intermediate arrays.

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Sample answer:

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam.

Quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore.

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