Frontend Mentor - Calculator app solution

This is a solution to the Calculator app challenge on Frontend Mentor. Frontend Mentor challenges help you improve your coding skills by building realistic projects.

Table of contents

• Overview
  • The challenge
  • Screenshot
  • Links
• My process
  • Built with
  • What I learned
  • Continued development
  • Useful resources
• Author

Overview

The challenge

Users should be able to:

• See the size of the elements adjust based on their device's screen size
• Perform mathmatical operations like addition, subtraction, multiplication, and division
• Adjust the color theme based on their preference
• Bonus: Have their initial theme preference checked using prefers-color-scheme and have any additional changes saved in the browser

Screenshot

Links

• Live Site URL: Vercel

My process

Built with

• Mobile-first workflow
• React - JS library
• Next.js - React framework
• TailwindCSS - For CSS
• HeadlessUI - For Headless UI Components

What I learned

I have learned how to switching themes and creating a working calculator following iOS calculator app. Even though it is easy when first thought about calculator but if deep deeper there is a lot of hidden logic that is not known.

There is some codes in here that I am proud of because it is my first time and I am managed to done it.

Lists:

• ./components/MultipleToggleSwitch.tsx (Three way toggle)
• ./styles/globals.css & ./tailwind.config.js (Theme switching)

Continued development

I would like to seperate more repetitive file into more smaller parts and tried out to call API because in this project there is no API to be called.

Useful resources

• Tailwind Theme Switcher - I am not experienced with theme switching before this but with this example I managed to figure out the way by looking through the source code.

Author

• Frontend Mentor - @rezuankassim
• Twitter - @KassimRezuan
• LinkedIn - rezuan-kassim