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

String Interpolation in GoExplore string interpolation in Go with our comprehensive guide. Learn about various methods such as fmt.Sprintf, string concatenation, and Go templates. Enhance your Go programming skills by mastering these techniques for dynamic string generation. How to Write Multiline Strings in GoLearn how to write multiline strings in Go using backquotes. This guide covers creating, formatting, and using multiline strings effectively, allowing you to maintain readability in your code. Discover practical examples, including SQL queries and special character handling, to enhance your Go programming skills. How to Check if a File Exists or Not in GoThis tutorial will demonstrate how to check if a file exists or not in Go. Learn various methods including os.Stat, os.Open, and ioutil.ReadFile with clear code examples and explanations to enhance your file handling skills in Go. How to Extract a Substring in GolangThis tutorial will demonstrate how to extract substrings in Golang using various methods, including string slicing and the strings package. Discover effective techniques to manipulate strings and enhance your coding skills with clear examples and explanations. How to Get Error Message in String in GoThis tutorial demonstrates how to get an error message in string format in Go. Learn effective error handling techniques, including using the Error method, creating custom error types, and wrapping errors for additional context. Enhance your Go programming skills and improve application reliability with practical examples and insights. How to Delete Key From Map in GoThis tutorial demonstrates how to delete a key from a map in Go. Learn the simple steps involved in using the delete function, along with clear code examples and explanations. Enhance your Go programming skills and manage your maps effectively. How to Cast Interface Into Concrete Type in GoThis tutorial demonstrates how to cast an interface into a concrete type in Go. Learn about type assertion and type switches with practical examples to enhance your Go programming skills. Understand the nuances of interfaces and how to effectively manage polymorphism in your code. How to Reverse an Array in GoThis tutorial demonstrates how to reverse an array in Go using various methods. Learn to implement simple loops, built-in functions, and recursion with clear examples. Perfect for beginners and experienced developers alike. Lambda Expression in GolangThis tutorial explores lambda expressions in Golang, detailing how to create and utilize them for cleaner, more efficient code. Learn about passing lambda expressions as arguments, using closures, and enhancing your programming skills with practical examples. Perfect for beginners and experienced developers alike, this comprehensive guide will help you unlock the potential of lambda expressions in your Golang projects. How to Deep Copy in GoThis tutorial demonstrates how to deep copy in Golang, exploring various methods such as JSON serialization, reflection, and manual copying. Learn the differences between deep and shallow copies and discover practical code examples to enhance your Go programming skills. Whether you're dealing with simple structs or complex nested data, this guide provides the insights you need for effective data management in Go. How to Print Struct Variables in Console in GoTo print the structure in Go, we use fmt package which implements formatted I/O with functions. How to Find a Type of an Object in GoWe can inspect the datatype of variables in Go using the reflect package. How to Install Package in GoLangThis tutorial demonstrates how to install packages in GoLang. How to Convert String to Byte Array in GolangThis tutorial demonstrates to convert Golang string to byte array. How to Create an Empty Slice in GoThis tutorial will demonstrate how to create an empty slice in Go using the make() function. How to Convert Boolean Into a String in GoThis tutorial demonstrates how to convert Boolean to a string in Go. How to Create Constructors in GolangThis tutorial demonstrates the different ways in creating constructors in Golang. How to Merge Two Maps in GolangThis tutorial demonstrates how to merge two maps in Golang. How to Sort Slice of Structs in GoThis tutorial demonstrates how to sort the slice of structs in GoLang. How to Reverse A String in GolangThis tutorial demonstrates the methods on how to reverse a string in GoLang. How to Install GoLang Using BrewThis tutorial demonstrates how to install Golang using brew on Linux or macOS. How to Concatenate Two Slices in GoAs slices are mutable in Go unlike the arrays, we can append new elements to a slice or append two or more slices using append() function. How to Queue Implementation in GolangThis article shows how to create a Queue in the Go programming language, often known as Golang, by utilizing the slice and container/list packages. How to Create Tags in GoThis tutorial demonstrates how to create tags using the struct function and JSON in Go.