![]() We use the import keyword to import a package.įmt is a built-in package provided by Go that provides input/output utility functions. The main package is the entry point of the program and identifies an executable program. go file first declares which package it is part of.Ī package can be composed by multiple files, or just one file. In there, create a hello.go file (you can name it as you want). In there, create a new folder, for example call it hello. Maybe you have a folder in your home directory where you keep all your coding projects and tests. So we’ll do that first, and then we’ll explain how we did it. It’s a programmer's tradition to make the first program print the “Hello, World!” string to the terminal when it’s run. Now we’re ready to create our first Go program! This extension will make your life easier, as it provides IntelliSense (syntax highlighting, autocompletion, on hover information, error highlighting…) and other things like auto formatting, menu options to install packages, testing, and more. At the bare minimum, install the Go extension. Read Go in Visual Studio Code for a quick “up and running” setup. I recommend using Visual Studio Code (aka VS Code) as your editor. On Linux you will have to add the Go binaries folder to your terminal path before you can run the go command after unpackaging the Linux package to /usr/local/go with this command: echo 'export PATH=$PATH:/usr/local/go/bin' > $HOME/.profile This will make it easier to update later. On a Mac you might also want to install Go via Homebrew using brew install golang. The Windows and Mac installers will set the Go binaries path automatically. On Windows, it will be under C:\Program Files\go. On macOS, it’s under /usr/local/go, with binaries in /usr/local/go/bin. The exact location of the Go installation files will depend on your Operating System. NOTE: you might have to open a new terminal before you can run the program, as the installer added the Go binaries folder to the path. Open the terminal and run go version and you should see something like this: Displaying the Go version you have Run the installer, and at the end of the process you will have the go command available in your terminal: Welcome to the Go installer Successful installation modal Go to and download the package for your Operating System. Reference the official Go documentation.Download the Go binaries (the go command and other related tools) from.Here are a few things you should know before we dive into the specifics of the language.įirst, is the homepage of the language. You can get a PDF and ePub version of this Go Beginner's Handbook here. This handbook will introduce you to the Go programming language so you can get started coding in Go. There’s lots of different, widely used tools that use this programming language under the hood. My favorite Static Site Generator (Hugo) is written in Go.Ĭaddy, a quite popular web server, is written in Go. You can use Go to create command line utilities and networking servers, and it's widely used in many different scenarios.įor example, Docker and Kubernetes are written in Go. You can use Go for many different tasks, and it can solve both simple problems and very complex ones. It aims to make some things simpler like concurrency and memory management, with garbage collection.Īlso, it was built to work along with C and C codebases, thanks to its C interoperability features. Go was meant to be a replacement for C and C codebases. make it easy to take advantage of multiprocessor systems.be boring, stable, predictable, offer less opportunities to make mistakes.be portable (compiled Go programs are binaries that do not require other files to run and are cross-platform, so they can be distributed easily).be low level enough but also avoid some pitfalls of being too low level.be simple so people can pick it up in little time.make their projects compile (and run) faster.Golang – also called Go – was created by Google engineers with these main goals: It’s compiled, open source, and strongly typed. Golang is an awesome, simple, modern, and fast programming language.
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