React Calculator

Simple calculator without eval().

• Calculations are made using precedence operators first.
• Allows negative numbers on calculations such 5*-5
• If a not allowed operator is entered replaces the last entered.

Install

clone this repo: git clone https://github.com/PabloPenia/react-calculator.git run: npm ci in the project directory (requires nodejs and npm: https://nodejs.org)

Available Scripts

In the project directory, you can run:

npm start

Runs the app in the development mode.
Open http://localhost:3000 to view it in your browser.

The page will reload when you make changes.
You may also see any lint errors in the console.

npm run build

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.\

TODO

• Add a max limit to entered calculations: As now only 15 digits are displayed, but all entered digits are counted in calculations./

For example: if you enter 20 digits you will see the last 15, but in the result you will see the calculation of the 20 digits because is hidden with CSS./

This could cause some wrong results if the final result is more than 15 digits long./

This will be fixed in next update.