Permutations: Difference between revisions

m
→‎ES6: let -> const
m (→‎ES6: let -> const)
Line 2,576:
'use strict';
 
letconst permutations = (xs) => xs.length ? (
flatMap((x) => flatMap((xs) => [[x].concat(xs)],
permutations(del(x, xs))), xs)
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