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
  • Links
• My process
  • Built with
  • What I learned
  • Continued development
• 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.

Links

• Solution URL: Add solution URL here
• Live Site URL: Add live site URL here

My process

Built with

• Semantic HTML5 markup
• CSS custom properties
• Flexbox
• CSS Grid
• Mobile-first workflow
• Sass

What I learned

I didn't know i could target elements in the head tag with JS, very simple but unexpected.

const styleSheet = document.getElementById('theme'); // Line 6, ./css/themes/theme.js
//...line 31, ./css/themes/theme.js (This is where i used it)
styleSheet.href = `./css/themes/theme-${btn.getAttribute('data-no')}.css`;

Learnt about CSS "prefers-color-scheme" (Did not use it). Trying to tackle a project without planning can consume a lot of time. Almost got me!!

Continued development

Ahhh... Areas i look to develop on:

• Responsive Layouts with CSS
• Loops // I have a sound knowledge of it, but sometimes i find it tricky
• CSS grid
• Project Time Estimation
• Proper Project Planning and Management Note: I might implement the bonus feature later

Author

• Twitter - @yourusername