Thanks for checking out this front-end coding challenge.
Frontend Mentor challenges help you improve your coding skills by building realistic projects.
To do this challenge, you need a good understanding of HTML, CSS and JavaScript.
Your challenge is to build out this calculator app and get it looking as close to the design as possible.
You can use any tools you like to help you complete the challenge. So if you've got something you'd like to practice, feel free to give it a go.
Your users should be able to:
- See the size of the elements adjust based on their device's screen size
- Perform mathematical 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-schemeand have any additional changes saved in the browser
Want some support on the challenge? Join our Slack community and ask questions in the #help channel.
Your task is to build out the project to the designs inside the /design folder. You will find both a mobile and a desktop version of the design.
The designs are in JPG static format. Using JPGs will mean that you'll need to use your best judgment for styles such as font-size, padding and margin.
If you would like the design files (we provide Sketch & Figma versions) to inspect the design in more detail, you can subscribe as a PRO member.
You will find all the required assets in the /images folder. The assets are already optimized.
There is also a style-guide.md file containing the information you'll need, such as color palette and fonts.
This project was bootstrapped with Create React App.
In the project directory, you can run:
Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.
The page will reload if you make edits.
You will also see any lint errors in the console.
Launches the test runner in the interactive watch mode.
See the section about running tests for more information.
Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.
Your app is ready to be deployed!
See the section about deployment for more information.
Note: this is a one-way operation. Once you eject, you can’t go back!
If you aren’t satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
You don’t have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
You can learn more in the Create React App documentation.
To learn React, check out the React documentation.