How to run a specific test in Go
Learn how to execute a specific test instead of the whole test suite in Go
Programming tips and snippets
How to check if a file or directory exists in Go
This article provides two main approaches to determining if a file or directory exists in Go
How to convert between strings and byte slices in Go
Learn the easy way to convert a string to a byte slice in Go and vice versa
How to extract URL Query Parameters in Go
Learn how to access URL query parameters in a request URL using the Go standard library
How to count the occurences of a character in a Go string
Learn how to count the number of times a character occurs in a string using the Go standard library
How to iterate over slices in Go
At some point in most programs, you may have the need to iterate over a slice to perform some work. In Go, the range keyword is used within …
How to pad a number with zeros in Go
This article provides a solution for padding numbers with leading zeros in Go
How to iterate over string characters in Go
Iterating over individual string characters is quite straightforward in Go
How to convert an HTTP response body to a string in Go
This article describes how you can parse the response of a web request and access it as a string in Go.
How to iterate over multiline strings in Go
This code snippet describes how to loop over each line of a multiline string in Go
How to count leading spaces in a string in Go
Learn how to count the spaces before first character of a string in Go
How to convert numbers to strings in Go
Converting a number to a string is easy in most programming languages, and its no different in Go
How to convert a string to an integer in Go
This article deals with the common operation of converting a string to an integer in Go
How to check the type of a value in Go
This article describes different ways to access the type of a variable in Go
How to print struct values in Go
This article describes all the ways to print struct values in Go for debugging purposes
How to create multiline strings in Go
Creating a multiline string is quite straightforward in Go. This article will show you how it's done
How to concatenate two or more slices in Go
The builtin append() function eases the task of joining multiple slices in Go, but you need to watch out for certain side effects
How to check if a slice contains an element in Go
There is no built-in method to check if a slice or array contains an item in Go. But don't worry, it's easy enough to write one yourself.
How to check if a string contains a substring in Go
The canonical way to perform this operation is by using strings.Contains, but we'll consider some other options as well.
How to extract a substring in Go
Support for extracting a part of a string is built into Go, but there's one important aspect to consider.
How to iterate over a map in Go
You can iterate over maps in Go but, unlike slices, the order of iteration is not guaranteed. There are ways to get around this, and that is …
How to check if map key exists in Go
In this code snippet, we are going to look at how you can check to see if a key exists within a map in Go.
How to copy or duplicate a slice in Go
The builtin copy() and append() functions eases the task of duplicating slices in Go, but you'll need to watch out for some edge cases
A guide to sorting in Go
This article explores a few techniques in Go that should make the sorting of any data collections a breeze.
String concatenation in Go
This article explores a few different ways to concatenate strings in Golang and gives the pros and cons of each one.
How to check if a file is a directory in Go
In this article, we'll go over some ways to distinguish between files and directories in Go
How to list the files in a directory with Go
This article examines some of the ways you can fetch a list of all the files in a directory using stdlib methods in Go.
The difference between nil and empty slices in Go
The difference between nil and empty slices are a common point of confusion for newbies to Go. This post discusses how they differ and when …
How to delete an element from a slice in Go
Unlike other languages, Go does not provide a built-in function for this purpose
How to read user input from the command line in Go
There are multiple ways to read user input from the terminal console in Go. Let's consider three basic scenarios you are likely to encounter …
How to cross-compile Go programs for Windows, macOS, and Linux
How do you build Go binaries that target operating systems and architectures other than your own? This is called cross-compiling, and it’s …
How to split a slice into uniform chunks in Go
Splitting a slice into chunks of uniform sizes is pretty straightforward in most programming languages, and its no different in Go.