davebaker,
In both cases, you are calculating the expensive_func() only once per item and sorting the list based off the result of the expensive_func(). The biggest difference is that in the standard ST, you do it in a single step and have no left over variable.

Cheers - L~R

In reply to Re: Schwartzian Transform vs. Building Hash of Function Results, Then Sorting on Function Results by Limbic~Region
in thread Schwartzian Transform by merlyn

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