A small JavaScript library built for happy numbers.

Written by Tyson Jones.

import { generateHappyNumbers, isHappy } from "happy-numbers2";

generateHappyNumbers(5); // Returns [ 1, 7, 10, 13, 19 ]
isHappy(7); // Returns true.
isHappy(5); // Returns false.

API

generateHappyNumbers(count: number, min = 1, max = Infinity): number[];

• count specifies how many numbers you want to generate.
• min The inclusive number to start generating from (whether or not it be a happy number).
• max The inclusive number to stop generating at (whether or not it be a happy number).

The function will return an array once either count or max is reached.

isHappy(num: number): boolean;

• num is the number you want to check.

Enjoy!