Golang

Last Updated : 11 Jun, 2024

GOLANG-language

Golang is a procedural and statically typed programming language having the syntax similar to C programming language. Sometimes it is termed as Go Programming Language. It provides a rich standard library, garbage collection, and dynamic-typing capability. It was developed in 2007 by Robert Griesemer, Rob Pike, and Ken Thompson at Google but launched in 2009 as an open-source programming language and mainly used in Google’s production systems. Golang is one of the most trending programming languages among developers.

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Overview, Fundamentals, Control Flow, Functions and Methods, Structure, Arrays & Slices, String, Pointers, Interfaces, Concurrency

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Go Programming Language (Introduction)

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How to convert a slice of bytes in uppercase in Golang?

In Go language slice is more powerful, flexible, convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence which stores elements of a similar type, you are not allowed to store different type of elements in the same slice. In the Go slice of bytes, you are allowed to convert a slice in the uppercase usin

Golang program that uses fallthrough keyword

With the help of fallthrough statement, we can use to transfer the program control just after the statement is executed in the switch cases even if the expression does not match. Normally, control will come out of the statement of switch just after the execution of first line after match. Don't put the fallthrough in the last statement of switch ca

math.Lgamma() Function in Golang with Examples

Go language provides inbuilt support for basic constants and mathematical functions to perform operations on the numbers with the help of the math package. This package provides Lgamma() function which is used to find the natural logarithm and sign (either -1 or +1) of Gamma(a). So, you need to add a math package in your program with the help of th

math.Float64bits() Function in Golang With Examples

Go language provides inbuilt support for basic constants and mathematical functions to perform operations on the numbers with the help of the math package. This package provides Float64bits() function which returns the IEEE 754 binary representation of a with the sign bit of a and the result in the same bit position. So, you need to add a math pack

How to check equality of slices of bytes in Golang?

In Go language slice is more powerful, flexible, and convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence that stores elements of a similar type, you are not allowed to store different types of elements in the same slice. In the Go slice of byes, you are allowed to check the equality of the slices w

atomic.AddInt64() Function in Golang With Examples

In Go language, atomic packages supply lower-level atomic memory that is helpful is implementing synchronization algorithms. The AddInt64() function in Go language is used to automatically add delta to the *addr. This function is defined under the atomic package. Here, you need to import "sync/atomic" package in order to use these functions. Syntax

atomic.StoreInt64() Function in Golang With Examples

In Go language, atomic packages supply lower-level atomic memory that is helpful is implementing synchronization algorithms. The StoreInt64() function in Go language is used to atomically store val into *addr. This function is defined under the atomic package. Here, you need to import "sync/atomic" package in order to use these functions. Syntax: f

reflect.FieldByIndex() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.FieldByIndex() Function in Golang is used to get the nested field corresponding to index. To access this function, one needs to imports the reflect package in the

strings.Contains Function in Golang with Examples

strings.Contains Function in Golang is used to check the given letters present in the given string or not. If the letter is present in the given string, then it will return true, otherwise, return false. Syntax: func Contains(str, substr string) bool Here, str is the original string and substr is the string that you want to check. Let us discuss th

bits.Sub() Function in Golang with Examples

The bits.Sub() Function in Golang is used to find the difference of a, b and borrow, i.e. diff = a - b - borrow. Here the borrow must be 0 or 1; otherwise, the behavior is undefined. To access this function, one needs to imports the math/bits package in the program. The return value of the borrowOutput will be always 0 or 1 in any case. Syntax: fun

How to convert a slice of bytes in lowercase in Golang?

In Go language slice is more powerful, flexible, convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence which stores elements of a similar type, you are not allowed to store different type of elements in the same slice. In the Go slice of bytes, you are allowed to convert a slice in the lowercase usin

io.PipeWriter.CloseWithError() Function in Golang with Examples

In Go language, io packages supply fundamental interfaces to the I/O primitives. And its principal job is to enclose the ongoing implementations of such king of primitives. The PipeWriter.CloseWithError() function in Go language is used to close the writer. However, successive reads from the PipeReader i.e, read half of the pipe will not return any

Import in GoLang

Pre-requisite learning: Installing Go on Windows / Installing Go on MacOS Technically defining, a package is essentially a container of source code for some specific purpose. This means that the package is a capsule that holds multiple elements of drug/medicine binding them all together and protecting them in one mini shell. This capsule is easy to

time.Round() Function in Golang With Examples

In Go language, time packages supplies functionality for determining as well as viewing time. The Round() function in Go language is used to find the outcome of rounding the stated duration 'd' to the closest multiple of 'm' duration. Here, the rounding manner for middle values is to round far off from 0. Moreover, this function is defined under th

How to add a method to struct type in Golang?

Structs consist of data, but apart from this, structs also tell about the behavior in the form of methods. Methods attached to structs is very much similar to the definition of normal functions, the only variation is that you need to additionally specify its type. A normal function returning an integer and taking no parameter would look like. func

Converting a string variable into Boolean, Integer or Float type in Golang

Various types of string conversions are needed while performing tasks in Golang. Package strconv is imported to perform conversions to and from string. String to Boolean Conversion ParseBool is used to convert string to boolean value. It accepts 1, t, T, TRUE, true, True as true and 0, f, F, FALSE, false, False as false. Any other value returns an

Check if the given slice is sorted in Golang

In Go language slice is more powerful, flexible, convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence which stores elements of a similar type, you are not allowed to store different type of elements in the same slice. In Go language, you can check the given slice is sorted or not with the help of Sl

How to compare times in Golang?

With the help of Before() and After() and Equal(), function we can compare the time as well as date but we are also going to use the time.Now() and time.Now().Add() function for comparison. Functions Used: These functions compares the times as seconds. Before(temp) - This function is used to check if the given time is before the temporary time vari

reflect.AppendSlice() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.AppendSlice() Function in Golang is used to appends a slice t to a slice s. To access this function, one needs to imports the reflect package in the program. Synta

How to Deploy a Golang WebApp to Heroku?

Go, also known as "Golang," is gaining popularity among DevOps professionals in recent years. There are many tools written in Go, including Docker and Kubernetes, but they can also be used for web applications and APIs. While Golang can perform as fast as a compiled language, coding in it feels more like interpreting with standard tools such as a c

reflect.ChanOf() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.ChanOf() Function in Golang is used to get the channel type with the given direction and element type, i.e., t represents int, ChanOf(RecvDir, t) represents <-c

flag.Bool() Function in Golang With Examples

Go language provides inbuilt support for command-line parsing and has functions that could be used to define flags to be used with a command-line program using the flag package. This package provides the flag.Bool() function which is used to define a boolean flag with the specified name, default value, and usage string. Syntax: func Bool(name strin

time.Sleep() Function in Golang With Examples

In Go language, time packages supplies functionality for determining as well as viewing time. The Sleep() function in Go language is used to stop the latest go-routine for at least the stated duration d. And a negative or zero duration of sleep will cause this method to return instantly. Moreover, this function is defined under the time package. He

time.Time.Year() Function in Golang with Examples

In Go language, time packages supplies functionality for determining as well as viewing time. The Time.Year() function in Go language is used to find the year in which the specified "t" happens. Moreover, this function is defined under the time package. Here, you need to import the "time" package in order to use these functions. Syntax: func (t Tim

Searching an element of float64 type in Golang slice

In Go language slice is more powerful, flexible, convenient than an array, and is a lightweight data structure. The slice is a variable-length sequence which stores elements of a similar type, you are not allowed to store different type of elements in the same slice. In the Go slice, you can search an element of float64 type in the given slice of f

reflect.DeepEqual() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.DeepEqual() Function in Golang is used to check whether x and y are “deeply equal” or not. To access this function, one needs to imports the reflect package in the

reflect.Indirect() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.Indirect() Function in Golang is used to get the value that v points to, i.e., If v is a nil pointer, Indirect returns a zero Value. If v is not a pointer, Indirec

Bitwise NOT operator in Golang

Bitwise NOT operator in the programming world usually takes one number and returns the inverted bits of that number as shown below: Bitwise NOT of 1 = 0 Bitwise NOT of 0 = 1 Example: Input : X = 010101 Output : Bitwise NOT of X = 101010 But Golang doesn't have any specified unary Bitwise NOT(~) or you can say Bitwise Complement operator like other

reflect.CanAddr() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.CanAddr() Function in Golang is used to check whether the value's address can be obtained with Addr. To access this function, one needs to imports the reflect pack

reflect.CanInterface() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.CanAddr() Function in Golang is used to check whether Interface can be used without panicking. To access this function, one needs to imports the reflect package in

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