30-seconds-of-code/snippets/unary.md

title, tags, expertise, firstSeen, lastUpdated

title	tags	expertise	firstSeen	lastUpdated
Unary function arity	function	beginner	2018-01-24T13:22:32+02:00	2020-10-22T20:24:44+03:00

Creates a function that accepts up to one argument, ignoring any additional arguments.

• Call the provided function, fn, with just the first argument supplied.

const unary = fn => val => fn(val);

['6', '8', '10'].map(unary(parseInt)); // [6, 8, 10]