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Combine `contains` and `insert` into one #28

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amomchilov opened this issue Apr 13, 2020 · 0 comments

amomchilov commented Apr 13, 2020 •

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CtCI-6th-Edition-Swift/Ch 2. Linked Lists/Ch 2. Linked Lists.playground/Pages/2.1 Remove Duplicates.xcplaygroundpage/Contents.swift

Lines 10 to 11 in 0dbf24e

    
           guard !set.contains($1) else { return $0 } 
        
           set.insert($1)

Could be re-written as:

guard set.insert($1).inserted else { return $0 }

It's more canonical, and makes the value only need to get hashed once.

The text was updated successfully, but these errors were encountered:

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