Dive Into Golang: A Crash Course

It is the vscode golang project. Please use the linux (not macos) environment to compile and run all of the examples. The more concise the language, the more flexible it becomes.

How to run the project

In ubuntu, I use the vscode to go build, run, go run and clean the project. To make the project easier to use, I created the tasks.json and launch.json files. Using the keyboard shortcut "command + shift + B," you may choose between the commands clean, go build, run, and go run for jobs in tasks.json.

Each options has the following meaning:

1. go build. It will generate the executable file.
2. run. It will execute the executable file created by the go build phase.
3. go run. The go source code will be executed directly in tasks.json.
4. clean. It will remove all executable files.

To debug the various source codes, press the F5 button.

Outline of Features

• Test Demo in VSCode
• Basic Grammar: Variable, Loop, Type System, Condition Branch, Pointer and Constant
• Collections: Array, Slice, Map, Set，Stack, and Queue
• String: Unicode, UTF-8, string and strconv Libraries
• Function: First-Citizen, Variable Parameters and Defer
• Object-Oriented Programming: Encapsolution using Struct, Polymorphism using Interface and Inheriance using Composition
  • Encapsolution
  • Duck Type Interface: It is represented by a pointer
  • Composition better than Inheritance
  • Interface Polymorphism Interface Polymorphism2
  • Self-Defined Virtual Function Table
  • Empty Interface
• Error Handling
• Package
• Concurrency in Action using Shared Memory
  • Goroutine
  • Shared Memory Protected: Mutex, RWLock, and Atomic Variables
  • Producer and Comsumer
  • Reader and Writer Problem
• Concurrency in Action using Channel
  • CSP Programming: Basics and Common Errors
  • Select Case
  • Using 1 Size Buffered Channel as a Lock
  • Error 1: Multiple Sender Send to A Channel
  • Error 2: Prohibited Main Thread Blocked
  • Error 3: Range for Loop of Channel
  • Error 3: How to Gracefully Close Channels
• Unsafe Programming: Try not to use

In Action

• A Toy Consistent Hash
• A Toy Raft

Dependency Management

We use the go module tool in the project to manage dependencies, which is also recommended by the golang community. We may use the following commands to generate the go.mod file for the various source code folds:

go mod init abcdabcd3899

To remove redundant dependencies, we utilize the following method:

go mod tidy

Contribute

Please open pull requests if you want to add new features.

References

1. Go Spec
2. GO FAQ
3. Package
4. Golang Composition Better Than Inheriance
5. Mipsmonsta Blog

Agreement

More information document of agreement

Attribution - Non-commercial - No interpretation