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

title, tags, expertise, cover, firstSeen, lastUpdated

title	tags	expertise	cover	firstSeen	lastUpdated
Random integer array in range	math,random	intermediate	blog_images/digital-nomad-11.jpg	2018-01-15T13:25:18+02:00	2020-10-22T20:24:04+03:00

Generates an array of n random integers in the specified range.

• Use Array.from() to create an empty array of the specific length.
• Use Math.random() to generate random numbers and map them to the desired range, using Math.floor() to make them integers.

const randomIntArrayInRange = (min, max, n = 1) =>
  Array.from(
    { length: n },
    () => Math.floor(Math.random() * (max - min + 1)) + min
  );

randomIntArrayInRange(12, 35, 10); // [ 34, 14, 27, 17, 30, 27, 20, 26, 21, 14 ]