calculate-bill-kata's Introduction

Calculate Bill kata

Create a function that takes the price of the bill, the VAT rate and the tip rate and returns the total amount the customer needs to pay, formatted as a currency string.

Step by step

Fork this repo to your account
Clone down the repo:
```
    git clone <YOUR_BRANCH_URL>
```
Open the repo in you terminal:
```
    cd calculate-bill-kata
```
Install the project:
```
npm i # shorter version of npm install
```

Run the tests:

npm test # they will fail to run. We haven't written any code yet.

Open VSCode by typing code . or by opening it mannually and navigating to the kata folder/directory
In index.html, declare a function called calculateBill. Leave the function body empty for now. Export your function at the bottom of the file with:
```
module.exports = calculateBill;
```
Commit and push your work to github
Look at test/index.test.js, what is the first test expexting? - can you write it in pseudocode? Which steps would it take? Maybe something like:

// create a function // this function will have to have 3 arguments - amount, vat and tip? // this function will have to return a string with a currency sign
Write the code to pass the first test. Keep a terminal window open and run your test by doing npm test or npm t
Things to nose at:
- Jest: https://jestjs.io/
- Test driven development (TDD): https://medium.com/javascript-scene/tdd-changed-my-life-5af0ce099f80 AND https://www.freecodecamp.org/news/ an-introduction-to-test-driven-development-c4de6dce5c/
- Git ignore: https://git-scm.com/docs/gitignore
- package.json: https://flaviocopes.com/package-json/
- module.exports and require: https://www.sitepoint.com/understanding-module-exports-exports-node-js/