Workshop Introduction

This repository contains some exercises for the introductory level of the Friends of Go workshops.

Feel free to open a new PR with your solutions.

Instructions

The exercises' level is incremental, so to avoid confusion, just do the exercises in a sorted way:

exercise-1
exercise-2
exercise-3
exercise-4

Each exercise has a its own README.md file with the specific instructions and some notes.

Feel free to open a new PR to contribute with us (typos, missing info, etc).

Requirements

This repository is tested under Go 1.12+ and using Go Modules.

The dependencies needed are:

• benchcmp

  $ go get -u golang.org/x/tools/cmd/benchcmp

• graphviz

  See the installation details for each platform on the link.

Exercises

1. Swapping Numbers

The first exercise basically consists on implementing a function to swap numbers:

func Nums(nums []int) []int {
	// TODO: Swap numbers
	return nums
}

2. Stupid Cache

The second exercise let you do your own implementation of an stupid cache to satisfy the given cache interface:

type StupidCache interface {
	Get(key string) []byte
	Set(key string, data []byte)
}

3. Benchmarking & Profiling

The third exercise is focused on benchmarking and profiling the Marshal and Unmarshal functions of the encoding/json package.

4. Concurrent Quiz

This fourth (and the last) exercise consists on adding concurrency on a quiz simple application in order to extend it and make it more funny.

It has has some "bonus tracks" to make it even funnier.