When I need to speed up code I go looking for nested hash references as in your example. It's my believe the cost of creating a new variable is small(er) compared to the cost of looking up the value of a nested reference. If the same value is referenced more than once, it's worth creating a variable to skip as much dereferencing as you can.

The fact that it's more readable is just a bonus.

In reply to Re^3: Coding style by ruzam
in thread Coding style by nyamned

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