All About GoLang.

Sometimes we need to convert one data-type to another. In this post, we will go into detail about type-casting in the Go programming language. Types in Go There are many data-types in Go. The numbers, floating points, boolean and string. Number: int, int32, int64, uint32, uint64 etc Floating points: float32, float64, complex64, complex128 Boolean: bool […]

A type-switch in Go is just like the switch statement but with types. In this post, we will go into details about the type-switches in Go. But first, we need to understand the switch statement. What is a switch statement? A switch statement is a control flow which checks for a condition to match and

Type assertions in Go help access the underlying type of an interface and remove ambiguity from an interface variable. In this post, we will get a closer look at type assertions. What are type-assertions in Golang? Type assertions reveal the concrete value inside the interface variable. Below is an example showing the assertion. Type assertion

In general programming interfaces are contracts that have a set of functions to be implemented to fulfill that contract. Go is no different. Go has great support for interfaces and they are implemented in an implicit way. They allow polymorphism in Go. In this post, we will talk about interfaces, what they are, and how

Errors are a language-agnostic part that helps to write code in such a way that no unexpected thing happens. When something occurs which is not supported by any means then an error occurs. Errors help to write clean code that increases the maintainability of the program. What is an error? An error is a well

A function in Go can return multiple values. In many cases, it is very useful. Multiple return values help to check errors in a concise way as we will see in this post. Golang Function return values A function can have any number of return values. Go supports this feature internally. Let’s see how a

In many cases, multiple parameters are needed to be passed in a function. Sometimes we know how many and other times we don’t. Golang variadic function applies to the second case where we don’t know how many arguments could be passed when calling that function. What are variadic functions in Golang? Variadic functions are just

There can be functions that don’t need a name in order to be defined. These are anonymous functions. Go has support for first-class functions. In this post, we will see how to use anonymous functions in the Go programming language. What are Anonymous Functions? Anonymous functions are those which don’t need a name to be

Recursion is one of the important concepts in programming languages. In this post, we will learn how to use recursion in Go. What is Recursion? Recursion happens when a function calls itself, i.e it recurs. When a function inside a program calls itself recursion occurs. Criteria for Recursion To be a recursive function it has

In this post, we will see templates and their usages in the Go programming language. What are templates? Templates are a common view through which we can pass data to make that view meaningful. It can be customized in any way to get any output possible. Template packages Templating in Go comes with two packages