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Articles by Sabid Ansari
Page 7 of 15
Goroutine vs Thread in Golang
Goroutines and threads are both used for achieving concurrency in programming languages. In Golang, goroutines are the primary mechanism for achieving concurrency, while threads are a lower-level construct that is managed by the operating system. In this article, we will explore the differences between goroutines and threads in Golang, their benefits and limitations, and when to use each of them. Goroutines A goroutine is a lightweight thread managed by the Go runtime. Goroutines allow multiple tasks to be executed concurrently, making it easier to write concurrent programs. Goroutines are more efficient than threads because they use less memory and can ...
Read MoreGolang GOPATH and GOROOT
If you are new to Golang, you may have heard of the terms GOPATH and GOROOT. These are important concepts that every Golang developer should understand. In this article, we will discuss what GOPATH and GOROOT are and how to use them effectively. What is GOPATH? GOPATH is an environment variable that specifies the root directory of your Go workspace. A workspace is a directory hierarchy where you keep all your Go code and dependencies. The GOPATH environment variable is used to tell the Go tools where to find your workspace. By default, GOPATH is set to a directory called ...
Read MoreGolang Environment Variables
Environment variables are an essential part of any software development process. They provide a way to configure an application's behavior without hard-coding values into the code. In Golang, environment variables are straightforward to use and can be set in many ways. In this article, we will discuss how to use environment variables in Golang and cover some best practices. What are Environment Variables? Environment variables are values that can be accessed by an application at runtime. They provide a way to configure the application's behavior without changing the code. Environment variables are used to set values such as database connection ...
Read MoreGo Decision Making (if, if-else, Nested-if, if-else-if)
Decision making is an important aspect of programming, and Go provides a variety of constructs for making decisions in your code. In this article, we'll explore the different types of decision making constructs in Go, including the if, if-else, nested-if, and if-else-if constructs. if statement The if statement in Go is used to execute a block of code only if a certain condition is true. Here's an example − Example package main import "fmt" func main() { x := 10 if x > 5 { ...
Read MoreGenerating Random Numbers in Golang
Random numbers play an important role in many applications, from computer games to cryptography. Go has a built-in package called "math/rand" that provides a suite of functions to generate random numbers. In this article, we will explore how to use the "math/rand" package to generate random numbers in Go. Generating a Random Integer To generate a random integer, we can use the "Intn()" function from the "math/rand" package. The "Intn()" function takes an integer n as its argument and returns a random integer between 0 and n-1. Example package main import ( "fmt" ...
Read MoreFunction that takes an interface type as value and pointer in Golang
In Go, it is common to write functions that take interfaces as arguments or pointers to interfaces. This can be useful when you want to write generic code that works with any type that satisfies a particular interface. Functions That Take an Interface Type as Value In Go, interfaces are defined as a set of methods. If a type implements all the methods of an interface, then it is said to satisfy the interface. This means that the type can be used wherever the interface is expected. Here is an example of a function that takes an interface type as ...
Read MoreFlag.Bool() Function in Golang With Examples
In Golang, the flag package provides a way to parse command-line arguments. It allows us to define flags that can be set when running a program from the command line. The flag.Bool() function is used to define a boolean flag. It creates a new bool flag with the specified name, default value, and usage string. In this article, we will explore the flag.Bool() function with examples. Syntax The syntax of the flag.Bool() function is as follows − flag.Bool(name string, default bool, usage string) *bool Parameters name − A string that specifies the name of the flag. default − ...
Read MoreFinding the Inverse Hyperbolic Tangent of Specified Number in Golang
In Golang, the math/cmplx package provides functions to calculate various mathematical operations on complex numbers. The inverse hyperbolic tangent function, also known as arctanh, is one of the many functions provided by the package. Inverse hyperbolic tangent function is used to find the angle whose hyperbolic tangent is a given number. This article explains how to find the inverse hyperbolic tangent of a specified number in Golang. Syntax The syntax to find the inverse hyperbolic tangent of a complex number is as follows − func Acctanh(x complex128) complex128 Parameters The Acctanh() function takes a single parameter, a complex number. ...
Read MoreFinding the Square Root of the Complex Number in Golang
In mathematics, a square root of a number is a value that when multiplied by itself, gives the original number. In Golang, the math/cmplx package provides built-in functions to find the square root of a complex number. In this article, we will discuss how to find the square root of a complex number in Golang with examples. Example 1: Finding the Square Root of a Complex Number Let's consider an example of finding the square root of a complex number using Golang. Suppose we want to find the square root of z = 3 + 4i. Here's the code snippet ...
Read MoreFinding Index of the Regular Expression present in Slice of Golang
In Golang, you can use regular expressions to search for a pattern in a string. The regexp package provides functionality to work with regular expressions. In this tutorial, we will learn how to find the index of the regular expression present in the slice of Golang. Step 1: Importing the Required Packages To use the regexp package, you need to import it first. You can import it using the following code − import "regexp" Step 2: Creating a Slice Next, we will create a slice of strings. This slice will contain the strings in which we will search for ...
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