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

title, tags

title	tags
unary	function,beginner

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]