yashjain2409 / calculator-app

Calculator app challenge from Frontend Mentor

Frontend Mentor - Calculator app solution

This is a solution to the Calculator app challenge on Frontend Mentor.

Table of contents

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

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

• Github
• Live Site URL

My process

I like to write first the HTML, only the HTML, it looks weird but when it's done I have a better idea of the styles needed.

Then I try to use only CSS for everything (animations, states, styles) and the last step is to add JS.

Built with

• Semantic HTML5 markup
• CSS custom properties
• Flexbox
• Mobile-first workflow
• Vanilla JS

What I learned

1. How to group numbers.
2. How to use media queries with JS.
3. How to format numbers (Intl.NumberFormat). (This isn't effective for this particular project.)

Continued development

• Update layout for horizontal orientation in mobile.
• Add other mathematical functions.

Useful resources

JS Media queries

Author

• Website - Hali
• Frontend Mentor - @halivert
• Twitter - @halivert

Contributors