Random-choose NPM

random-choice

random-choice a value in array

Usage

import randomChoose, { randomKeyChoose } from "random-choose";

const a = [3, 4, 5, 6];

console.log(randomChoose(a)); // one of 3, 4, 5, 6
console.log(randomKeyChoose(a)); // one of 0, 1, 2, 3

const obj = { a: "q", s: "w", d: "e", f: "r" };

console.log(randomChoose(obj)); // one of q,w,e,r
console.log(randomKeyChoose(obj)); // one of a,s,d,f

Test

import { expect, it } from "vitest";
import randomChoose, { randomKeyChoose } from ".";
it("random-choice", () => {
  const a = [3, 4, 5, 6];

  console.log(randomChoose(a)); // one of 3, 4, 5, 6
  console.log(randomKeyChoose(a)); // one of 0, 1, 2, 3

  expect(a.includes(randomChoose(a))).toBe(true);
  expect([...a.keys()].includes(randomKeyChoose(a))).toBe(true);

  expect(randomChoose(null)).toBe(undefined);
  expect(randomKeyChoose(null)).toBe(undefined);

  expect(randomChoose([])).toBe(undefined);
  expect(randomKeyChoose([])).toBe(undefined);

  const obj = { a: "q", s: "w", d: "e", f: "r" };
  const keys = Object.keys(obj);
  const values = Object.values(obj);

  console.log(randomChoose(obj)); // one of q,w,e,r
  console.log(randomKeyChoose(obj)); // one of a,s,d,f

  expect(values.includes(randomChoose(obj))).toBe(true);
  expect(keys.includes(randomKeyChoose(obj))).toBe(true);

  expect(randomChoose(null)).toBe(undefined);
  expect(randomKeyChoose(null)).toBe(undefined);

  expect(randomChoose({})).toBe(undefined);
  expect(randomKeyChoose({})).toBe(undefined);
});