Learn free golang tutorials

Golang Switch case tutorials & complete examples

September 21, 2022 ·  11 min read

This article covers the Switch case statements with expressions and types with various syntax examples in Golang. Contents Golang Switch case statements Golang Expression Switch case statement Golang Switch Case Example The duplicate case with the same values are not allowed Default case executes when the matched case is not declared Switch with No expression or Condition in go language Switch case contains multiple expressions or conditions fallthrough case in the switch statement in the case body switch case floating values example switch case String literals in golang Break statement to exit from the loop Functions can be used as Expression in switch and case Type Switch in Goland switch type assertion interface example type switch struct example Conclusion Golang Switch case statements Switch case executes a particular code block when we have multiple code blocks based on condition....

Golang Map tutorials with examples

September 13, 2022 ·  12 min read

In this tutorial, We are going to learn map built-in type with examples in the Go Language. Contents Go Language Map tutorials Map Syntax in Golang Golang map examples How to declare a Map initialized with zero value map with nil type Create Map using inbuilt make function Create and initialize using map literals Adding elements (key-value pair) to a Map How to Check if the map contains a key How to fin Size of a map - BuiltIn len() function How to remove items from a map - built-in delete function Iterate over all items of the map - range form of for loops map copy is reference types values of a map copy Check Compare equivalence of map How to Convert map key/values into slice examples?...

Golang Tutorials - Comments in Go Language

September 13, 2022 ·  4 min read

When you are learning a new language, The basic thing to learn is about data types, control flow statements, and Comments. This post explains Different types of comments and how to write comments in Go Language?. In a programming language, Comments contains statements to describe the line of code statements. These are part of the program code that contains statements used to place human-readable information. It helpsdevelopers to maintain the code readability, improve code quality, and easily find bugs and fixes for it....

Golang Tutorials - Beginner guide Slice Examples

May 15, 2022 ·  13 min read

This blog post covers Golang Slice Complete tutorials with example Contents Golang Slice Introduction Slice Variable Create and Initialize Slice Empty Values Nil Slice non zero values Create and initialize Slice using literal Slice creation using other Slice Create a slice using make() function Length and capacity slice - len() capacity() function Iteration of elements in the slice Iterate elements in a slice - for loop Iteration of the element in slice using for loop with range keyword Copy function - Copy elements in a slice Copy slice to another slice Copy string bytes to byte slice example Append function - add an element to the end element of Slice Append slice to another slice Append string bytes to Slice bytes Modify a slice elements multidimensional slice - a slice of slices Golang Slice Introduction Arrays are a static fixed size....

Golang Array tutorials with examples

May 14, 2022 ·  12 min read

This blog covers Beginner guide to Arrays in Golangauage with examples. Contents Golang Arrays Introduction Array Syntax in Golang How to declare and create an array in Golang? How to Declare array and initialization with array Literal? How to Declare an array with an ellipse symbol? Assign elements and access elements using the index? How to find a length of an array - Number of elements?...

Golang Tutorials - Complex Types Numbers Guide With Examples

May 12, 2022 ·  3 min read

Learn about Complex Numbers types in the Go language with examples. Golang Complex Type Numbers Golang provides Inbuilt data types for numerics, strings, and other types. Numeric are int, uint, float, and complex numbers. Complex Numbers contain two parts - real numbers and imaginary numbers, for example, a complex number is 12.8i. In Golang, Complex numbers represent in two types. complex64 type- this type represent float32 real and imaginary data....

Golang Map type tutorials with examples

May 8, 2022 ·  1 min read

Some programming languages allow you to declare multiple variables with a single line. This post shows you how to declare multiple variables. In Golang, Variables are declared as follows var variable type How to declare multiple variables of the same type in Golang? Is it possible to declare multiple variables in Golang? Yes, It is possible to declare multiple variables of the same type in a single statement. Here is a declaration syntax for multiple variables....

Go Language with fundamental tutorials with examples

April 2, 2022 ·  1 min read

It is the main page for all Go Language Tutorials with examples. Go Language Tutorials Go is a popular programming language from Google company. It has the following features. The syntax is similar to the C language Concurrency Support Opensource Static typed Supports all platforms in Windows, Linux, Unix Opensource Garbage collection Following are different posts on Golang. Install and Setup Golang Hello World Application Explained Variable Declaration Beginner Guide Datatype tutorials Basics if else statement with examples While Loop With examples For Loop Tutorials with examples Foreach tutorials with examples Switch Case Tutorials with examples Beginner Guide to Functions with examples Rune Type with tutorials examples Operator Guide with examples File Or Directory IO Operations with examples Golang Conversions Convert String to Boolean and back to String Convert String to Int with an example Convert Int to String with examples Convert Binary to Decimal vice versa Convert Octal to Decimal vice-versa Golang Data structures Set version of MAP with Example Map Types Guides With examples Map Advanced Programs with examples Slices Examples with tutorials Guide to Arrays with examples hostname and IP Address Related examples Golang Complete Examples Example programs ...

Golang Example - strconv ParseFloat function guide

April 2, 2022 ·  3 min read

This blog post covers package strconv ParseFloat Function with examples in the Go Language. golang strconv ParseFloat function strconv is a standard inbuilt package in go language that provides various function implementations for converting a string to types into an int, float, boolean etc.. String to float is a common task of a programmer during development ParseFloat is an inbuilt function, converts a String value to a floating number...

Golang Example - strconv ParseInt Function explained

April 2, 2022 ·  3 min read

In this blog post, We are going to learn strconv ParseInt Function with examples in the Go Language. strconv ParseInt Function strconv package provides functions for converting String to or from different data types. PaseInt() is one of the functions used to convert String to Integer types and used for Number conversions. You can get official documentation from here Syntax Here is a signature of ParseInt example func ParseInt(s string, radix/base int, bitSize int) (i int64, err error) Arguments List -...

Golang Example programs with code

April 2, 2022 ·  2 min read

Go is a Static typed popular programming language. To learn a new programming language, We must write a practical example by making use of features. It is an index page for all golang features like control statements -loops, if-else, data types, data structures, classes, Conversions of one datatype to others, and objects. All the programs and examples are compiled and tested and given output. if you are new to go language, want to learn golang before working on this program, then have a look Golang Tutorials....

GoLang Examples - Convert String to Int types with examples

April 2, 2022 ·  5 min read

This article talks about three ways to convert String to Integer in Go Language. Golang String int datatypes String and Int are different data types and hold different values. When we want to perform mathematical calculations on strings that contain numbers, we must convert string to int. if a user enters a numeric value in the text box of a web application form, this will be received as input as a string....

Golang Examples Convert string to/from boolean

April 2, 2022 ·  3 min read

In this blog post, You will learn how String conversion from Boolean type in goes language with examples. Golang String bool conversion string and bool are predefined data types available in Golang. String accepts a group of characters, bool accepts true or false values. for example, string type contains value - “true”|“false”, bool type contains values - true|false. In the Go language, String conversion will not happen automatically. We have to write a custom manual code or use standard packages - fmt or strconv to do that....

Golang File and Directory IO operations with examples

April 2, 2022 ·  13 min read

In this tutorial, you will learn file and directory operations with examples. Contents Golang File IO package Golang File Examples How to create an Empty File in Golang How to Copy files in Go Language? How to print Name, size, permissions, information of a File, and Directory? How to Rename or move a file name to a new name How to Delete a file in Golang? How to truncate or Reduce file size in Golang?...

Golang Recursion - Recursive function with examples

April 2, 2022 ·  4 min read

In this blog post, we are going to learn Recursive functions in golang with examples. Contents what is the golang recursive function Recursion Syntax in Golang Golang Recursion function Example: Infinite times Golang Recursion function Example: finite times How to generate Factorial Number using Recursion function Example? Recursion example for calculating Fibonacci series Recursive anonymous function Conclusion what is the golang recursive function Recursion is a general programming code process in which the method or function calls itself continuously....

Golang Tutorials - Beginner guide to Functions with examples

April 2, 2022 ·  10 min read

Contents Golang Functions why Function is required? Golang Function Example using Empty Function declaration Return Multiple values from a functions Blank Identifier - subset return values Named return values from a Function Variadic functions - variable arguments closure or anonymous functions defer statement arrays as a slice of arguments Golang Functions This article covers the following things related to functions in Go language...

Golang Tutorials - Data types Basic Guide with examples

April 2, 2022 ·  4 min read

Learn basic inbuilt predefined data types in golang tutorials with examples. Go language data types Go is a modern open-source programming language from Google. It is a statically typed language which means type checking is done at compile time. Variable can be declared a type or inferred from type inference. datatypes in golang define the same type of data that can be used to allocate memory size for storing the particular value....

Golang tutorials - For Loop beginner guide with examples

April 2, 2022 ·  4 min read

This blog post covers the For Loop with a break, continue, goto keywords with examples in Go Language. Golang For loop For loop is used to execute the code block a specific number of times. it is one more control structure type in the go language. Following is a syntax of for loop. for initialization; conditional Boolean expression; increment|decrement { // Code block } following are notes of for loop syntax...

Golang Tutorials - foreach loop with range keyword examples

April 2, 2022 ·  3 min read

In this blog post, We are going to learn for each loop with a range in go language with example Golang for each loop the foreach loop is a for loop with a range keyword. It uses to iterate each element from Array, Slice, Map, and Strings. It is always useful to iterate the elements of a data structure without getting the length of data structure Syntax of the for with range loop is as follows....

Golang tutorials - Variables starter guide with examples

April 2, 2022 ·  5 min read

This blog post, It covers the Golang Tutorials variables guide with examples. Golang variables Variables usage in go language is the same as in another programming language such as java. Variables are the name given to a space in memory where values are stored. These are various types of values that are stored. Based on each type, memory size will be accommodated. Variables names can be named using letters, digits, and underscore characters....

Golang tutorials -Learn While loop example

April 2, 2022 ·  2 min read

This blog post covers learn while and do while loop guide with examples in Golang. Golang do while loop example Like other programming languages, there is no while loop or do while loop syntax in the go language. Instead, it provides for a loop with a Boolean expression. These can be used in place of the do-while loop in the Go language. It executes the block of code multiple times until conditional expression is true....

Golang Tutorials-Hello World First Program example

April 2, 2022 ·  4 min read

In this blog post, we’ll go through the essentials of the Hello World example in the Go programming language. Go Language First Program code Google released Go, a popular Opensource programming language. You will write a sample Hello world program example while learning any language. To write and run the Golang program, you’ll need the following things. Go Compiler installation Use any code editor, such as Sublime Text or Atom, or Visual Studio Code, to manually write the code shown below....

Learn Golang Operators Guide with examples

April 2, 2022 ·  9 min read

Go Language Operators Like many programming languages, Golang has support for various inbuilt operators. Important keynotes of operators in the Go language Operators are character sequences used to execute some operations on a given operand(s) Each operator in the Go language is of types Unary Operator or Binary Operator. Binary operators accept two operands, Unary Operator accepts one operand Operators operate on one or two operands with expressions These are used to form expressions The following are different types covered as part of this blog post....

Learn Golang Tutorials - if else statement examples

April 2, 2022 ·  4 min read

Learn control flow structures - if-else statements in Go Language with examples. golang if statements Like many programming languages, Go Language provides control structures for decision-making. if and else statements are one of type. if statements use to execute a piece of code based on the conditional expressions. if the condition is satisfied, the code block is executed. if and else in golang are reserved words. This blog post covers examples and syntaxes for the following things....

Learn Golang Tutorials - Rune Types Explained with examples

April 2, 2022 ·  6 min read

Contents What is Rune in Golang? How to declare variable rune type in Golang? How to create Rune type using Rune Literal values? How to check variable is rune or not? How to Iterate over a string using rune type? How to Check Unicode code point and a number of a character or string? How to Convert String to/from rune array or slices? How to get the length of a string in runes and bytes Conclusion What is Rune in Golang?...

Learn Golang tutorials-Install and setup Windows

April 2, 2022 ·  2 min read

Learn an easy way to install go language on windows. Go Language installation Go is a modern popular open-source programming language. Go language developed by Google. It provides binary versions for Windows, macOS, and Linux officially. If you want to install a different environment, You can get the source code and build it to your platform. Go language provides the following binaries for installation in different environments. Windows Apple macOS Linux Ubuntu Installation and Setup on Windows First, get the binary installer for windows ie MSI file from and download it....

Learn how to create a Set data structure with examples

April 2, 2022 ·  3 min read

This post covers Implementation of Set Data structure in go language with examples How to create a Set in Golang? Set is a general data structure that contains a collection of elements, does not allow duplicate elements. some programming languages like java has inbuilt Set support In a Programming language, Set is a computer data structure implementation of mathematical finest concepts. Generally Set are an Unordered list and no duplicates. In Golang, We can use Map type to implement the Set type....