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tarasowski/sum-recursion.js

Created January 29, 2019 19:28
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Calculate sum of an array recursively
Raw
sum-recursion.js
const arr = [1, 2, 3]
const sum = arr =>
arr.length === 0
? 0
: arr[0] + sum(Array.prototype.slice.call(arr, 1))
sum(arr) // 6
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