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jafow/divorce.js

Created June 15, 2016 01:53
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divorce
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divorce.js
/**
* divorce takes an array of nested array pairs and returns 2 one-dimensional arrays with elements from each pair, in order
* ex: divorce([[1,2], [3,4]]) --> {a1: [1,3], a2: [2,4]}
*/
const divorce = (arr, a1 = [], a2 = []) =>
!arr[0]
? { a1, a2 }
: divorce(arr.slice(1), a1.concat(arr[0][0]), a2.concat(arr[0][1]))
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