An Introduction To Generics - The Go Programming Language
The Go 1.18 release adds support for generics. Generics are the biggest change we’ve made to Go since the first open source release. In this article we’ll introduce the new language features. We won’t try to cover all the details, but we will hit all the important points. For a more detailed and much longer description, including many examples, see the proposal document. For a more precise descrip
Coverage profiling support for integration tests - The Go Programming Language
Back to Go Testing Table of Contents: Overview Building a binary for coverage profiling Running a coverage-instrumented binary Working with coverage data files Frequently Asked Questions Resources Glossary Beginning in Go 1.20, Go supports collection of coverage profiles from applications and from integration tests, larger and more complex tests for Go programs. Overview Go provides easy-to-use su
Managing Go installations - The Go Programming Language
This topic describes how to install multiple versions of Go on the same machine, as well as how to uninstall Go. For other content on installing, you might be interested in: Download and install -- The simplest way to get installed and running. Installing Go from source -- How to check out the sources, build them on your own machine, and run them. Installing multiple Go versions You can install mu
Go Modules Reference - The Go Programming Language
Introduction Modules are how Go manages dependencies. This document is a detailed reference manual for Go’s module system. For an introduction to creating Go projects, see How to Write Go Code. For information on using modules, migrating projects to modules, and other topics, see the blog series starting with Using Go Modules. Modules, packages, and versions A module is a collection of packages th
Go Developer Survey 2020 Results - The Go Programming Language
Alice Merrick 9 March 2021 Thank you for the amazing response! In 2020, we had another great turnout with 9,648 responses, about as many as 2019. Thank you for putting in the time to provide the community with these insights on your experiences using Go! New modular survey design You may notice some questions have smaller sample sizes (“n=”) than others. That’s because some questions were shown to
Go Modules: v2 and Beyond - The Go Programming Language
Jean de Klerk and Tyler Bui-Palsulich 7 November 2019 Introduction This post is part 4 in a series. Part 1 — Using Go Modules Part 2 — Migrating To Go Modules Part 3 — Publishing Go Modules Part 4 — Go Modules: v2 and Beyond (this post) Part 5 — Keeping Your Modules Compatible Note: For documentation on developing modules, see Developing and publishing modules. As a successful project matures and
The Go Memory Model - The Go Programming Language
Introduction The Go memory model specifies the conditions under which reads of a variable in one goroutine can be guaranteed to observe values produced by writes to the same variable in a different goroutine. Advice Programs that modify data being simultaneously accessed by multiple goroutines must serialize such access. To serialize access, protect the data with channel operations or other synchr
- The Go Programming Language
Source file src/crypto/x509/pem_decrypt_test.go 1 // Copyright 2012 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package x509 6 7 import ( 8 "bytes" 9 "crypto/rand" 10 "encoding/base64" 11 "encoding/pem" 12 "strings" 13 "testing" 14 ) 15 16 func TestDecrypt(t *testing.T) { 17
runtime package - runtime - Go Packages
Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. It also includes the low-level type information used by the reflect package; see reflect's documentation for the programmable interface to the run-time type system. Environment Variables ¶The following environment variables ($name or %name%, depending on the host operating system) c
Writing Web Applications - The Go Programming Language
Introduction Covered in this tutorial: Creating a data structure with load and save methods Using the net/http package to build web applications Using the html/template package to process HTML templates Using the regexp package to validate user input Using closures Assumed knowledge: Programming experience Understanding of basic web technologies (HTTP, HTML) Some UNIX/DOS command-line knowledge Ge
Testable Examples in Go - The Go Programming Language
Andrew Gerrand 7 May 2015 Introduction Godoc examples are snippets of Go code that are displayed as package documentation and that are verified by running them as tests. They can also be run by a user visiting the godoc web page for the package and clicking the associated “Run” button. Having executable documentation for a package guarantees that the information will not go out of date as the API
Go and the Zen of Python
Go and the Zen of Python Andrew Gerrand Gopher What is Go? A new programming language. (First release in November 2009, 1.0 in March 2012.) In a nutshell: A simple language that is easy to learn and read. Statically typed, but with a dynamic feel. Compiled to native machine code, but has a fast development cycle. Language-level concurrency features. Expansive "batteries included" standard library.
The Go Programming Language Specification - The Go Programming Language
Introduction This is the reference manual for the Go programming language. The pre-Go1.18 version, without generics, can be found here. For more information and other documents, see go.dev. Go is a general-purpose language designed with systems programming in mind. It is strongly typed and garbage-collected and has explicit support for concurrent programming. Programs are constructed from packages
Where is my favorite helper function for testing? - Frequently Asked Questions (FAQ) - The Go Programming Language
Origins What is the purpose of the project? At the time of Go's inception in 2007 the programming world was different from today. Production software was usually written in C++ or Java, GitHub did not exist, most computers were not yet multiprocessors, and other than Visual Studio and Eclipse there were few IDEs or other high-level tools available at all, let alone for free on the Internet. Meanwh
A Quick Guide to Go's Assembler - The Go Programming Language
A Quick Guide to Go's Assembler This document is a quick outline of the unusual form of assembly language used by the gc Go compiler. The document is not comprehensive. The assembler is based on the input style of the Plan 9 assemblers, which is documented in detail elsewhere. If you plan to write assembly language, you should read that document although much of it is Plan 9-specific. The current
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Go Concurrency Patterns: Context - The Go Programming Language
quick package - testing/quick - Go Packages
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talks - The Go Programming Language