On Monday, 28 March 2016 at 01:44:02 UTC, sarn wrote:
D's implementation of functional purity supports "weak" purity
- functions that can mutate arguments but are otherwise
traditionally pure.
I wrote a post about some of the practical benefits of this
kind of purity:
https://theartofmachinery.com/2016/03/28/dirtying_pure_functions_can_be_useful.html
Nice article. A suggestion: The point about improved testability
when designing for purity is well made. In D, this is further
supported by the ability to write and place unit tests alongside
the functions themselves. That's my personal opinion at least -
because unit test are so easy to write in D, it encourages design
for testability.
My suggestion is to add a note about this to the post.
--Jon
