Revision as of 09:48, 1 January 2018 (view source) Hout (talk \| contribs) m (→‎JS ES6 Recursive: (normalised spacing)) ← Older edit		Revision as of 09:03, 8 January 2018 (view source) rosettacode>Gpapo (→‎{{header\|Julia}}) Newer edit →
Line 2,055: =={{header\|Julia}}== Note that Julia versions prior to 0.5 auto-flattened nested arrays. The following version of flatten makes use of the higher order function ''mapreduce''. <lang ~~Julia~~julia>flat(Aarr::Array) = mapreduce(x -> isa(x, Array) ? flat(x) : x, ~~vcat~~append!, [], Aarr)</lang> An iterative recursive version that is even faster. <lang ~~Julia~~julia>function ~~flat~~flat2(Aarr) ~~result~~ rst = Any[] grep(av) = for x in a v if isa(x, Array) ? grep(x) :else push!(~~result~~rst, x) end end grep(Aarr) ~~result~~ rst end ~~</lang>~~ ~~julia>~~arr = ~~show(flat(~~[[1], 2, [[3, 4], 5], [[[]]], [[[6]]], 7, 8, []]))▼ @show flat(arr)</lang> {{out}} <pre>flat(arr) = Any[1, 2, 3, 4, 5, 6, 7, 8]</pre> ~~<pre>~~ ▲julia> show(flat([[1],2,[[3, 4], 5],[[[]]],[[[6]]],7,8,[]])) ~~Any[1,2,3,4,5,6,7,8]~~ ~~</pre>~~ =={{header\|K}}==

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