Install

Getting Started

To start

1. yarn or npm install
2. yarn start or npm start

Running Tests

yarn test

Explanation

First of all, how I started this project? I did some research about Casio Calculators. I couldn't find the manual of the SL-300SV Calculator but I learned how it works from the manuals of other Casio calculators.

I found an old Casio calculator in the offfice of my current company. I got interaction(look & feel) ideas from it.

Implementation

Features

Auto Power Off Feature

http://docs-europe.electrocomponents.com/webdocs/1398/0900766b81398fe8.pdf

Calculator power turns off automatically if you do not perform any operation within 10 minutes.

Memory Functions

I wasn't sure about storing memory data to localStorage. It would be more problematic to replicate a real hardware.

Code Splitting

This calculator has some advanced functions that's why I spent most time on code-splitting.

I splitted keys by types like main, basic, memory, math, number.

I wrote keys.js then put key combinations on layout.js, every arrays in layout.js are rows.

I built processors for every key types. They looks like Redux -> Reducers.

Future Ideas

Key Codes (would be better)

You don't need to click the key. If you press the key on your keyboard, we're triggering that functionality with animation.