30-seconds-of-code/snippets/js/s/times.md

title, type, language, tags, cover, dateModified

title	type	language	tags	cover	dateModified
Iterate n times	snippet	javascript	function	purple-laptop	2020-10-20T11:21:07+03:00

Iterates over a callback n times.

• Use Function.prototype.call() to call fn n times or until it returns false.
• Omit the last argument, context, to use an undefined object (or the global object in non-strict mode).

const times = (n, fn, context = undefined) => {
  let i = 0;
  while (fn.call(context, i) !== false && ++i < n) {}
};

var output = '';
times(5, i => (output += i));
console.log(output); // 01234