This is the 7th project for freeCodeCamp's Front-End Development certificate.

Completed On: 28 January 2016
Last Updated: 30 March 2017

Build an app that is functionally similar to this: https://codepen.io/FreeCodeCamp/full/rLJZrA/.

Rule #1: Don't look at the example project's code. Figure it out for yourself.

Rule #2: Fulfill the below user stories. Use whichever libraries or APIs you need. Give it your own personal style.

• I can add, subtract, multiply and divide two numbers.
• I can clear the input field with a clear button.
• I can keep chaining mathematical operations together until I hit the equal button, and the calculator will tell me the correct output.