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happy-number

v0.0.1

Published

https://en.wikipedia.org/wiki/Happy_number

Downloads

11

Vulnerabilities

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Links

Git

Maintainers

npmpabsnpmpabs

Keywords

happyunhappysadnumbernumbers

Readme

happy-number Build Status

A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number either equals 1 (where it will stay), or it loops endlessly in a cycle which does not include 1. Those numbers for which this process ends in 1 are happy numbers, while those that do not end in 1 are unhappy numbers (or sad numbers).

happy-number

Install

$ npm install --save happy-number

Usage

const happyNumber = require('happy-number');

happyNumber(7);
//=> true

happyNumber(42);
//=> false

API

happyNumber(number)

number

Type: number

License

MIT © Pablo