# Calculator CLI

**Tier:** 2-Intermediate

Create a basic calculator with addition feature. 

## User Stories

- [ ] User can add multiple numbers using `add` command.
- [ ] User can add floating numbers using the `-f` flag.
- [ ] User can add only even/odd numbers using `even`/`odd` sub-command.
- [ ] User can use `--help` or `-h` flag to get all the available commands and flags.
  
> Note: The stories 1 and 2 are basically for static typed language, where passed arguments must be of same type.

## Bonus Features

- [ ] User can use all the basic arithmetic operations like (addition, subtraction, multiplication and divison).
- [ ] User can use `--help` or `-h` flag to get the sub-commands of command.
- [ ] **Power of** and **Square Root of** operation.

## Useful links and resources

- [5 keys to create a killer CLI in Go](https://blog.alexellis.io/5-keys-to-a-killer-go-cli/)
- [How to build a CLI tool in NodeJS ?](https://www.freecodecamp.org/news/how-to-build-a-cli-tool-in-nodejs-bc4f67d898ec/)
- [Build a Command Line Interface (CLI) Application with Node.js](https://codeburst.io/build-a-command-line-interface-cli-application-with-node-js-59becec90e28)
- [Building Beautiful Command Line Interfaces with Python](https://codeburst.io/building-beautiful-command-line-interfaces-with-python-26c7e1bb54df)
- [How to create a CLI in golang with cobra](https://schadokar.dev/posts/how-to-create-a-cli-in-golang-with-cobra/)
- [Building a Network Command Line Interface in Go](https://tutorialedge.net/golang/building-a-cli-in-go/)

## Example projects

-   [my-calc](https://github.com/schadokar/my-calc)