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HugoDF/map.js

Last active October 18, 2016 19:00
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ES6 map implementation using recursion and destructuring
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map.js
function map([ head, ...tail ], fn) {
if (head === undefined && !tail.length) return [];
return tail.length ? [ fn(head), ...(map(tail, fn)) ] : [ fn(head) ];
}
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