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A comment on Removing Array Duplicates. Parent comment

Re:Removing Array Duplicates by johannkokos on Friday April 12, 2019 @06:30AM (#19643589)
Just like C++, your filter can be simplified like,

filter(|string| {set.insert(string)}

as insert return a bool.

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Re:Removing Array Duplicates by nicoburns on Friday April 12, 2019 @06:44AM (#19643644)
Oo, I didn't realise that. Super handy. I've updated my snippet to make use of your suggestion :)
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