How can I optimize the performance of Ruby blocks?

How can I optimize the performance of Ruby blocks?

To optimize Ruby blocks, consider using lazy enumerators, avoiding unnecessary object allocations, and minimizing block usage in tight loops.

What are lazy enumerators and how do they help?

Lazy enumerators allow you to process collections without loading them entirely into memory, which can significantly improve performance.

Are there any specific methods or techniques I should use?

Yes, methods like lazy, each_with_index, and using map or select with blocks can help reduce overhead.

Can you give an example of using lazy enumerators?

Sure! You can use array.lazy.select { |x| x.even? }.first(5) to get the first 5 even numbers without processing the entire array.