CODEWITHSUNDEEP
swift
Alex
Alex

Reputation: 3971

Swift Flat Map Dictionary Data Structure

I'm trying to map a dictionary to a flattened array of its values. Turn this object into [Object]

var objectsDic: [Int : [[Object]]]

I finally found a way that works

objectsDic.map { $0.value }.flatMap { $0 }.flatMap { $0 }

Is there a better way to do this without using two separate flat map calls? Thanks!

Upvotes: 4

Views: 1226

Answers (1)

Daniel Hall
Daniel Hall

Reputation: 13679

A hybrid of some of the suggestions in the comments, and I believe the most concise notation:

objectsDict.flatMap{$0.value.joined()}

Upvotes: 3

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