@jsjoeio/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

npm install @jsjoeio/streak-counter
or
yarn add @jsjoeio/streak-counter

Usage

import { streakCounter } from "@jsjoeio/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",
// }