n
arguments, ignoring any additional arguments.fn
, with up to n
arguments, using Array.prototype.slice(0, n)
and the spread operator (...
).const ary = (fn, n) => (...args) => fn(...args.slice(0, n));
const firstTwoMax = ary(Math.max, 2); [[2, 6, 'a'], [6, 4, 8], [10]].map(x => firstTwoMax(...x)); // [6, 6, 10]
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