Practical solutions

Go Howtos How-To Guides

Solve the problem. Keep building. Collection of Golang how-to articles

Find the answer you need

Browse practical solutions, grouped by the task you're working on.

__COUNT__ entries on this page

Go FileHow to Read/Write From/to a File in GoThis tutorial demonstrates how to read and write from and to a file in Go. Learn the essential techniques for file I/O operations, including reading files line by line and appending content. Discover practical examples and clear explanations to enhance your Go programming skills. Go RuneRune in GoThis tutorial provides a comprehensive overview of runes in Go, explaining their definition, usage, and importance in text processing. Learn how to declare, initialize, and manipulate runes effectively in your Go applications. Discover practical examples and gain insights into converting between runes and strings. Perfect for both beginners and experienced developers looking to enhance their Go programming skills. Go Stack TraceHow to Dump Goroutine Stack Traces in GoThis tutorial demonstrates how to dump goroutine stack traces in Go, providing essential techniques for debugging. Learn to utilize the runtime and pprof packages, and discover how to manage goroutines effectively. Gain insights into performance issues and enhance your Go applications with these practical methods. Go UninstallationHow to Uninstall GoLangThis tutorial demonstrates how to uninstall GoLang on different operating systems including Windows, macOS, and Linux. Follow our step-by-step guide to remove GoLang effectively and clean up your environment variables. Whether you’re troubleshooting or switching versions, this comprehensive guide will help you navigate the uninstallation process smoothly. Go Ternary OperatorThe Idiomatic Go Equivalent of C's Ternary OperatorThis tutorial explores the idiomatic Go equivalent of C's ternary operator using if-else statements. Learn how to implement conditional logic in Go with clear examples and explanations. Discover the benefits of Go's design philosophy that emphasizes readability and maintainability, making your code easier to understand. Golang foreach loopThe Foreach Loop in GolangThis tutorial explores the implementation of the foreach loop in Go programming language. Learn how to effectively use the `for range` construct to iterate over slices, maps, and channels. Enhance your coding skills with practical examples and detailed explanations. Discover the versatility and efficiency of the foreach loop in Go and improve your programming projects. Go VariadicHow to Optional Parameters in GoThis tutorial demonstrates how to pass optional parameters in Golang. Learn various methods including variadic functions, structs, and the functional options pattern to enhance your Go programming skills. Discover how to implement these techniques for cleaner, more maintainable code. Go PackageHow to Import Local Packages in GoThis tutorial demonstrates how to import local packages in Go, covering essential concepts like Go modules and workspaces. Learn best practices for organizing your code and enhancing maintainability. Whether you're a beginner or an experienced developer, this guide will help you master local package imports in Go effectively. Go UUIDHow to Generate a UUID in GolangIn this tutorial, we will discuss what UUIDs are and how to generate a UUID in Golang. Explore various methods, including the use of popular packages like github.com/google/uuid and github.com/segmentio/ksuid, to create unique identifiers for your applications. Whether you need random or time-based UUIDs, this guide will help you implement them effectively in your projects. Go SliceHow to Check if a Slice Contains an Element in GolangThis tutorial demonstrates how to check if a slice contains an element in Golang. Learn various methods, including simple loops, maps for faster lookups, and binary search for sorted slices. Enhance your Golang programming skills with practical code examples and detailed explanations. Go IotaEnumerator in GoThis tutorial explores an idiomatic way of representing enums in Go, demonstrating how to use constants and iota effectively. Learn how to implement the Stringer interface for better output and utilize enums with switch statements for cleaner code. Discover best practices to enhance your Go applications with enums, making your code more readable and maintainable. Go StringHow to Split a String With Delimiters in GoThis tutorial demonstrates how to split a string with delimiters in Go. Learn various methods using the strings package, regular expressions, and more to efficiently manipulate strings in your Go applications. Improve your coding skills and streamline your projects with these techniques. Go MapHow to Get a Slice of Keys From a Map in GoThis tutorial demonstrates how to generate a slice of keys from a map in Go. Learn various methods to extract keys efficiently, including simple loops, reusable functions, and advanced techniques using reflection. Enhance your Go programming skills with practical examples and clear explanations. Go ShellHow to Execute Shell Command in GoThis tutorial demonstrates how to execute shell commands in Go, focusing on running Git commands. Learn to use the os/exec package, handle errors, pass arguments, and execute commands in different directories. Enhance your Go applications with powerful system-level operations and streamline your workflow. Go StringHow to Convert String to Int64 in GoThis tutorial demonstrates how to convert a string to int64 using ParseInt() in Go. Learn about the ParseInt() function, error handling, and converting hexadecimal strings to int64. With practical examples and detailed explanations, you'll master string-to-int64 conversions in Go. Go StringHow to Generate Random String of Fixed Length in GolangThis tutorial demonstrates how to generate random strings of fixed length in Golang. Learn about using the math/rand and crypto/rand packages for both general and secure random string generation. Follow our step-by-step guide with code examples to master this essential programming skill. Go StringHow to Format a String Without Printing in GolangThis tutorial demonstrates how to format a string without printing in Golang. Learn various techniques using fmt.Sprintf, string interpolation, and special character handling to enhance your string manipulation skills in Go programming. Go TimeHow to Convert Time to String in GoThis tutorial demonstrates how to convert time to string in Go. Learn various methods to format timestamps, parse strings into time objects, and handle time zones effectively. With practical code examples and detailed explanations, you'll master time manipulation in Go, enhancing your applications' usability and functionality. Go CompositeHow to Composite Literals in GoThis tutorial demonstrates and discusses composite literals in Go, providing insights into how to create and initialize arrays, slices, maps, and structs efficiently. By the end, you'll understand how to leverage composite literals to enhance your Go coding experience. Go DateTimeHow to Format Current Time in a yyyyMMddHHmmss Format in GoThis tutorial demonstrates how to format the current time using a yyyyMMddHHmmss format in Go. Learn to utilize Go's time package effectively, understanding the layout strings and methods to achieve accurate time formatting. Whether for logging or unique identifiers, this guide provides clear examples and explanations to enhance your coding skills in Go. Go MapHow to Copy a Map in GoThis tutorial demonstrates how to copy a map in Golang. Learn various methods, including using loops, slices, and JSON marshalling, to effectively handle map copying in your Go applications. Gain insights into each method's advantages and best practices for working with maps in Go. Go SliceDifference Between []String and ...String in GoThis tutorial explores the differences between []string and ...string in Go. Learn how to effectively utilize these string types in your applications, understand their syntax, and discover when to use each one. Improve your Go programming skills with practical examples and insights. Go IdentifierThe Zero Value Nil in GolangThis tutorial explores the concept of nil in Golang, explaining its significance as the zero value for pointers, interfaces, maps, and slices. Learn how to effectively use nil in your Go programs to manage uninitialized variables and avoid common pitfalls. Enhance your understanding of Golang and improve your coding practices with practical examples and clear explanations. Go StructGolang Array of StructsThis tutorial provides a comprehensive guide on creating and using an array of structs in Golang. Learn how to define structs, initialize arrays, access elements, and modify data efficiently. Perfect for beginners and experienced developers looking to enhance their Golang skills.