1 <!--{ 2 "Title": "Documentation", 3 "Path": "/doc/" 4 }--> 5 6 <p> 7 The Go programming language is an open source project to make programmers more 8 productive. 9 </p> 10 11 <p> 12 Go is expressive, concise, clean, and efficient. Its concurrency 13 mechanisms make it easy to write programs that get the most out of multicore 14 and networked machines, while its novel type system enables flexible and 15 modular program construction. Go compiles quickly to machine code yet has the 16 convenience of garbage collection and the power of run-time reflection. It's a 17 fast, statically typed, compiled language that feels like a dynamically typed, 18 interpreted language. 19 </p> 20 21 <div id="manual-nav"></div> 22 23 <h2>Installing Go</h2> 24 25 <h3><a href="/doc/install">Getting Started</a></h3> 26 <p> 27 Instructions for downloading and installing the Go compilers, tools, and 28 libraries. 29 </p> 30 31 32 <h2 id="learning">Learning Go</h2> 33 34 <img class="gopher" src="/doc/gopher/doc.png"/> 35 36 <h3 id="go_tour"><a href="//tour.golang.org/">A Tour of Go</a></h3> 37 <p> 38 An interactive introduction to Go in three sections. 39 The first section covers basic syntax and data structures; the second discusses 40 methods and interfaces; and the third introduces Go's concurrency primitives. 41 Each section concludes with a few exercises so you can practice what you've 42 learned. You can <a href="//tour.golang.org/">take the tour online</a> or 43 install it locally with: 44 </p> 45 <p> 46 <pre> 47 $ go get golang.org/x/tour/gotour 48 </pre> 49 This will place the <code>gotour</code> binary in your workspace's <code>bin</code> directory. 50 </p> 51 52 <h3 id="code"><a href="code.html">How to write Go code</a></h3> 53 <p> 54 Also available as a 55 <a href="//www.youtube.com/watch?v=XCsL89YtqCs">screencast</a>, this doc 56 explains how to use the <a href="/cmd/go/">go command</a> to fetch, build, and 57 install packages, commands, and run tests. 58 </p> 59 60 <h3 id="effective_go"><a href="effective_go.html">Effective Go</a></h3> 61 <p> 62 A document that gives tips for writing clear, idiomatic Go code. 63 A must read for any new Go programmer. It augments the tour and 64 the language specification, both of which should be read first. 65 </p> 66 67 <h3 id="faq"><a href="/doc/faq">Frequently Asked Questions (FAQ)</a></h3> 68 <p> 69 Answers to common questions about Go. 70 </p> 71 72 <h3 id="wiki"><a href="/wiki">The Go Wiki</a></h3> 73 <p>A wiki maintained by the Go community.</p> 74 75 <h4 id="learn_more">More</h4> 76 <p> 77 See the <a href="/wiki/Learn">Learn</a> page at the <a href="/wiki">Wiki</a> 78 for more Go learning resources. 79 </p> 80 81 82 <h2 id="references">References</h2> 83 84 <h3 id="pkg"><a href="/pkg/">Package Documentation</a></h3> 85 <p> 86 The documentation for the Go standard library. 87 </p> 88 89 <h3 id="cmd"><a href="/doc/cmd">Command Documentation</a></h3> 90 <p> 91 The documentation for the Go tools. 92 </p> 93 94 <h3 id="spec"><a href="/ref/spec">Language Specification</a></h3> 95 <p> 96 The official Go Language specification. 97 </p> 98 99 <h3 id="go_mem"><a href="/ref/mem">The Go Memory Model</a></h3> 100 <p> 101 A document that specifies the conditions under which reads of a variable in 102 one goroutine can be guaranteed to observe values produced by writes to the 103 same variable in a different goroutine. 104 </p> 105 106 <h3 id="release"><a href="/doc/devel/release.html">Release History</a></h3> 107 <p>A summary of the changes between Go releases.</p> 108 109 110 <h2 id="articles">Articles</h2> 111 112 <h3 id="blog"><a href="//blog.golang.org/">The Go Blog</a></h3> 113 <p>The official blog of the Go project, featuring news and in-depth articles by 114 the Go team and guests.</p> 115 116 <h4>Codewalks</h4> 117 <p> 118 Guided tours of Go programs. 119 </p> 120 <ul> 121 <li><a href="/doc/codewalk/functions">First-Class Functions in Go</a></li> 122 <li><a href="/doc/codewalk/markov">Generating arbitrary text: a Markov chain algorithm</a></li> 123 <li><a href="/doc/codewalk/sharemem">Share Memory by Communicating</a></li> 124 <li><a href="/doc/articles/wiki/">Writing Web Applications</a> - building a simple web application.</li> 125 </ul> 126 127 <h4>Language</h4> 128 <ul> 129 <li><a href="/blog/json-rpc-tale-of-interfaces">JSON-RPC: a tale of interfaces</a></li> 130 <li><a href="/blog/gos-declaration-syntax">Go's Declaration Syntax</a></li> 131 <li><a href="/blog/defer-panic-and-recover">Defer, Panic, and Recover</a></li> 132 <li><a href="/blog/go-concurrency-patterns-timing-out-and">Go Concurrency Patterns: Timing out, moving on</a></li> 133 <li><a href="/blog/go-slices-usage-and-internals">Go Slices: usage and internals</a></li> 134 <li><a href="/blog/gif-decoder-exercise-in-go-interfaces">A GIF decoder: an exercise in Go interfaces</a></li> 135 <li><a href="/blog/error-handling-and-go">Error Handling and Go</a></li> 136 <li><a href="/blog/organizing-go-code">Organizing Go code</a></li> 137 </ul> 138 139 <h4>Packages</h4> 140 <ul> 141 <li><a href="/blog/json-and-go">JSON and Go</a> - using the <a href="/pkg/encoding/json/">json</a> package.</li> 142 <li><a href="/blog/gobs-of-data">Gobs of data</a> - the design and use of the <a href="/pkg/encoding/gob/">gob</a> package.</li> 143 <li><a href="/blog/laws-of-reflection">The Laws of Reflection</a> - the fundamentals of the <a href="/pkg/reflect/">reflect</a> package.</li> 144 <li><a href="/blog/go-image-package">The Go image package</a> - the fundamentals of the <a href="/pkg/image/">image</a> package.</li> 145 <li><a href="/blog/go-imagedraw-package">The Go image/draw package</a> - the fundamentals of the <a href="/pkg/image/draw/">image/draw</a> package.</li> 146 </ul> 147 148 <h4>Tools</h4> 149 <ul> 150 <li><a href="/doc/articles/go_command.html">About the Go command</a> - why we wrote it, what it is, what it's not, and how to use it.</li> 151 <li><a href="/blog/c-go-cgo">C? Go? Cgo!</a> - linking against C code with <a href="/cmd/cgo/">cgo</a>.</li> 152 <li><a href="/doc/gdb">Debugging Go Code with GDB</a></li> 153 <li><a href="/blog/godoc-documenting-go-code">Godoc: documenting Go code</a> - writing good documentation for <a href="/cmd/godoc/">godoc</a>.</li> 154 <li><a href="/blog/profiling-go-programs">Profiling Go Programs</a></li> 155 <li><a href="/doc/articles/race_detector.html">Data Race Detector</a> - a manual for the data race detector.</li> 156 <li><a href="/blog/race-detector">Introducing the Go Race Detector</a> - an introduction to the race detector.</li> 157 <li><a href="/doc/asm">A Quick Guide to Go's Assembler</a> - an introduction to the assembler used by Go.</li> 158 </ul> 159 160 <h4 id="articles_more">More</h4> 161 <p> 162 See the <a href="/wiki/Articles">Articles page</a> at the 163 <a href="/wiki">Wiki</a> for more Go articles. 164 </p> 165 166 167 <h2 id="talks">Talks</h2> 168 169 <img class="gopher" src="/doc/gopher/talks.png"/> 170 171 <h3 id="video_tour_of_go"><a href="http://research.swtch.com/gotour">A Video Tour of Go</a></h3> 172 <p> 173 Three things that make Go fast, fun, and productive: 174 interfaces, reflection, and concurrency. Builds a toy web crawler to 175 demonstrate these. 176 </p> 177 178 <h3 id="go_code_that_grows"><a href="//vimeo.com/53221560">Code that grows with grace</a></h3> 179 <p> 180 One of Go's key design goals is code adaptability; that it should be easy to take a simple design and build upon it in a clean and natural way. In this talk Andrew Gerrand describes a simple "chat roulette" server that matches pairs of incoming TCP connections, and then use Go's concurrency mechanisms, interfaces, and standard library to extend it with a web interface and other features. While the function of the program changes dramatically, Go's flexibility preserves the original design as it grows. 181 </p> 182 183 <h3 id="go_concurrency_patterns"><a href="//www.youtube.com/watch?v=f6kdp27TYZs">Go Concurrency Patterns</a></h3> 184 <p> 185 Concurrency is the key to designing high performance network services. Go's concurrency primitives (goroutines and channels) provide a simple and efficient means of expressing concurrent execution. In this talk we see how tricky concurrency problems can be solved gracefully with simple Go code. 186 </p> 187 188 <h3 id="advanced_go_concurrency_patterns"><a href="//www.youtube.com/watch?v=QDDwwePbDtw">Advanced Go Concurrency Patterns</a></h3> 189 <p> 190 This talk expands on the <i>Go Concurrency Patterns</i> talk to dive deeper into Go's concurrency primitives. 191 </p> 192 193 <h4 id="talks_more">More</h4> 194 <p> 195 See the <a href="/talks">Go Talks site</a> and <a href="/wiki/GoTalks">wiki page</a> for more Go talks. 196 </p> 197 198 199 <h2 id="nonenglish">Non-English Documentation</h2> 200 201 <p> 202 See the <a href="/wiki/NonEnglish">NonEnglish</a> page 203 at the <a href="/wiki">Wiki</a> for localized 204 documentation. 205 </p> 206
