Checkout System

This project implements a simple checkout system with pricing rules for bulk discount and buy A pay B offers.

Getting Started

To use the checkout system, follow the steps below:

Prerequisites

Make sure you have Node.js installed on your machine.

Installation

Clone the repository:

git clone https://github.com/Dhroov7/zeller-assignment.git
cd zeller-assignment

Setup Project:
```
npm install
tsc
npm start
```

Usage

const { Checkout } = require("./checkout");
const co = new Checkout({
 BULK_DISCOUNT: {
     ipd: {
         discountedPrice: 499.0,
         threshold: 2,
     },
 },
 BUYA_PAYB: {
         atv: {
             pay: 2,
             buy: 3,
         },
     },
 });
 co.scan("ipd");
 co.scan("ipd");
 co.scan("ipd");
 co.scan("atv");
 console.log(co.total());

NOTE: This project has constant.ts file which contains the products as a constant in memory.