Go
Variables
Variables are defined as:
var name type = value
For example:
var x string = "Hello"
The type can be inferred if an initial value is given, e.g.
var x = "Hello"
or by using the := operator:
x := "Hello"
Constants can be defined by using the const keyword instead of var.
Loops
Go only supports the for loop - unlike other languages it lacks while, do while etc. However, it is possible to emulate other loop constructs using for.
Imports
Standard import notation:
import "fmt"
Multiple imports can be done either one line at a time or as a group:
import ( "fmt" "math" )
The group format is preferred and used by gofmt.
Names in packages are exported if they begin with a capital letter.
Cross compiling
Cross compiling is easy with Go, using two environment variables:
GOOS: The operating system to target. Options are: windows (Microsoft Windows), darwin (macOS) and linux.
GOARCH: The architecture to target.
GUI programming
Walk
- Only works on Windows(?)
andlabs UI
- Cross-platform
- No commits since June 2020
- Lots of unresolved issues on GitHub
Qt
- therecipe/qt on GitHub
- No commits since September 2020
- Qt licensing unclear
Shiny
- Experimental
- Current state of development unclear
Nuklear
- No commits since March 2020
Fyne
Dependencies on Ubuntu:
- libgl1-mesa-dev
- xorg-dev
GTK
- Can't cross-compile(?)
Dependencies for GTK on Ubuntu:
- libglib2.0-dev
- libgdk-pixbuf-2.0-dev (or libgdk-pixbuf2.0-dev)
- libpango1.0-dev
- libgtk2.0-dev
Libraries
- systray - Place your Go application in the system tray. Cross-platform.
Articles
- A Gopher's Reading List
- Best practices for a new Go developer
- Packaging a Go application for macOS
- Shrink your Go binaries with this one weird trick
- Go arm64 Function Call Assembly
- How to Build Your First Web Application with Go
- Process huge log files
- Go: Using pointers to reduce copies is premature optimization
- Building a new router for GOV.UK