JavaScript

flatten array in JavaScript

JavaScriptAlgorithmsrecursionintermediate

What this snippet does

Recursion handles unknown depth naturally — the base case (non-array) pushes the value, the recursive case digs deeper.

Expected output

[ 1, 2, 3, 4, 5 ]
[ 1, 2, 3, 4, 5 ]

Why practise typing this

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