Summary of Golang Knowledge Points

Go, often referred to as Golang, is an open-source programming language developed by Google. It's known for its simplicity, efficiency, and concurrency support. Golang is a powerful language suitable for a wide range of applications, particularly those requiring concurrency and efficiency. Its simplicity and robust standard library make it a popular choice for many developers.

Key Features of Golang

Concurrency

• Golang employs goroutines and channels for concurrent programming.

  • Channel in SDK/src/runtime/chan.go file: check the article --> "What is Channel?"

• Goroutines are lightweight threads managed by the Go runtime.

• Channels facilitate communication and synchronization between goroutines.

Strong Standard Library

• Golang comes with a comprehensive standard library that covers many essential functionalities, including I/O, networking, and more.

Static Typing and Compilation

• Golang is statically typed, which means type checking occurs at compile-time.
• It's a compiled language that compiles to machine code.
  • Compile package in SDK/src/cmd/compile: check the article --> "Understanding Go's Compilation Process"

Simplicity and Readability

• Golang emphasizes simplicity and readability.
• Its clean syntax and minimalistic approach aim to reduce complexity.

Built-in Testing Framework

• Golang includes a built-in testing framework making it easy to write and execute tests.

Basic Language Constructs

Variables and Types

• Golang supports various types, including basic types (int, string, bool), structs, arrays, slices, maps, and more.
• Variables are declared using the var keyword.

Control Structures

• Golang supports standard control structures like if-else, for loops, switch, and defer for deferred function execution.

Functions

• Functions are a fundamental part of Go.
• They support multiple return values and function closures.

Error Handling

• Error handling in Golang often involves returning error values alongside the usual return values.

Advanced Concepts

Interfaces

• Golang supports interfaces to define behavior.
• Interfaces are implemented implicitly.

Concurrency and Goroutines

• Goroutines enable concurrent programming, allowing functions to run concurrently.
• Channels facilitate communication between goroutines.

Package Management

• Golang uses go modules for managing dependencies.

Memory Management

• Golang uses automatic memory management with garbage collection.