/hw-w08d01-react-calculator

Primary LanguageJavaScript

React Calculator!

Setup

  • run npm install in this directory to get all of the dependencies.

Assignment

In this directory is a basic React calculator. The UI is built out, but the calculator isn't functional...yet.

Your completed calculator should:

  • Show numbers in the display component when clicked
  • When clicking a series of numbers, the display will show all of them. For example, clicking 1 - 5 - 7 will show 157
  • Keep track of the most recent operator pressed (+, -, /, x)
  • When = is pressed, preform the operator between the running total and the displayed number.

Tips for Getting Started

  • Consider how and where state should be managed for this app.
  • What props will need to be passed around the app?
  • Each tile will need to behave in a unique way. Think about the functions you will need for each. What needs to happen when a number is pushed? What happens when you push +? What happens when you push =?
  • Your calculator should be able to hold on to a few pieces of state:
    • the current value being displayed
    • the running total
    • the most recent operator

BONUS

  1. Write a function to handle when the decimal key is pressed
  2. Write a function to handle clicking the '+/-' button
  3. Write a funciton to handle the '%' button. Ex: 10 % -> 0.10, 22 % -> 0.22
  4. Write a function that will show the calculators recent history when you double click on the display component

Submission

Homework is due by 12:00 Monday Night!