@mrabetr/streak-counter - a basic streak counter

This is a basic streak counter - inspired by Duolingo - written in TypeScript and meant for the browser (uses localStorage)

Install

yarn add @mrabetr/streak-counter

or

npm install @mrabetr/streak-counter

Usage

import {streakCounter} from '@mrabetr/streak-counter'

const today = new Date()
const streak = streakCounter(localStorage, today)
// streak returns an object:
// {
//    currentCount: 1,
//    lastLoginDate: "11/11/2021",
//    startDate: "11/11/2021",
// }