Introduction

This repository is a collection of Go code I wrote while learning the language. It contains simple programs, experiments, and notes.

It's mainly for my personal learning, but I am making the repo public in case it may be helpful to others.

Note

Since this is just for personal learning / experimenting, the code probably won't adhere to best practices, be the most efficient or work in every edge case.

Contents

tutorial/ Basic Go tutorials

sorting/ Sorting algorithms with tests and benchmarks

Golang commands

To initialise the go.mod file (i.e. start writing golang)

go mod init github.com/Owen-Choh/<module>

To build an executable named after the module and run it

go build; ./<module>

To get some remote package, will also update the go mod file

go get github.com/Owen-Choh/<module>

• also updates add .sum to keep track of dependancies

Hack for local development, better not to do in production (put in the go.mod file)

replace github.com/Owen-Choh/go_stuff/mystrings v0.0.0 => ../mystrings

packages

• "main" means you can build and run this file
• "something else" means this file is imported into something else
  • first letter of function name needs to be caps to export

running tests and benchmark

go test <optional test file path>

some useful flags

• -v verbose message to see what test pass and fail, and logs even when test passes
• -bench=. or -bench . to run all benchmarks in this file
  • -benchmem if you want to see memory allocation
  • example go test -bench . -benchmem ./ run all benchmarks found in this directory and show the memory allocations too

Future plans

Stuff I plan to work on in the future:

• build a simple API and probably put it in a container
• experiment more on concurrency
• experiment with using a db