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Golang provides several methods to remove a specified directory, including using the os and filepath packages. Removing a directory is a critical operation, and caution should be exercised when performing this task. This article will discuss the different methods to remove a directory in Golang, along with the syntax and algorithm for each method. Method 1: Using The os Package The os package in Golang provides several functions to perform operating system-related operations, including removing a directory. The Remove function of the os package is used to remove a directory. Syntax Remove(dirName) The Remove() function is present in os ... Read More
Primarily, there are two types of data types − Primitive and Non-primitive. Primitive data types are predefined types of data, which are supported by the programming language. Non-primitive data types are not defined by the programming language, but are instead created by the programmer. With this brief introduction to data types, let's start this article and differentiate Stack and Queue data structures. Both Stack and Queue are types of data structures to store data in a particular order. A stack data structure is a type of linear list which allows the insertion or deletion of an element ... Read More
In Golang, we have two internal functions - ReadDir() and Walk function to get a list of filenames prenent in a specific directory. Here we have write three examples. In the first example We will use the ReadDir() function present in ioutil package while in the second one we are using the walk function present in the filepath package. Method 1: Using ioutil PACKAGE The ioutil package in Golang provides several functions to perform input/Output operations, including reading the files and directories. The ReadDir() function of the ioutil package is used to get the list of files in a specified ... Read More
The Go programming language provides various methods to obtain the home directory of the current user. This information can be useful in many applications, such as file management, system configuration, etc. In this article, we will discuss different methods to get the home directory in Go along with syntax and examples. Method 1: Using os.UserHomeDir() The os.UserHomeDir() function is part of the Go standard library and is the simplest and most efficient method to get the home directory of the current user. Here is an example that demonstrates the usage of os.UserHomeDir() Syntax func UserHomeDir() (string, error) The UserHomeDir() ... Read More
SOP (Sum of Product) and POS (Product of Sum) are the methods of representing a reduced logic expression. The basic difference between the two is that SOP expresses a Boolean function as a sum (logical OR) of product (logic AND) terms, while POS expresses a logic function as a product (logic AND) of sum (logic OR) terms. Read this article to learn more about SOP and POS and how they are different from each other. What is SOP? Sum of Product (SOP) is a method of representing a logic function by using minterms. The expression of a SOP includes product ... Read More
One of the features of Go is the ability to search and retrieve files based on a specified pattern. In this article, we will discuss different methods to get the list of filenames that match a specified wildcard pattern in Go, and provide syntax and examples for each method. Method 1: Using the "filepath.glob" The "filepath.Glob" method is the easiest and most straightforward way to retrieve the list of filenames that match a specified wildcard pattern. The function takes a pattern as input and returns a slice of strings that match the pattern. Syntax filenames, err := filepath.Glob(pattern) The ... Read More
In Go, a directory is a special type of file that holds other files and directories. A directory is used to organize files on a file system and provides a structure to the file system. Go provides several functions in the os package to work with directories, including: os.mkdir, os.remove, os.open, etc. Syntax func Stat(name string) (fi FileInfo, err error) The Stat() function is present in os package and is used to check the status of a particular directory. The function takes a string parameter name, which represents the path of the directory. It returns a FileInfo structure, fi, ... Read More
Smoke testing and Sanity testing are two important types of testing in software development. Both the tests are used to validate the functionality of a software product and identify any critical issues, however they are quite different in their scope. The basic difference between the two is that smoke testing is one that ensures that the features of an application are working fine or not, whereas sanity testing is one that is performed to test whether all the errors have been fixed after the build of the application. Read this article to learn more about smoke testing and sanity ... Read More
In the Go programming language, a file is a named resource for storing data that can be read from or written to. It provides a way for the program to persist data, even after the program has finished executing. Here in this article we will discuss different methods using which we can count the number of lines in a file. Method 1: Using a user-defined function In this method, we will write a go language program to count the number of lines present in the file by using bufio, fmt and os packages. Algorithm Step 1 − First, ... Read More
In Go, postorder tree traversal is a technique in which the left child is visited first, then the right child, and finally the root node is the definition of the order. This order is frequently used to carry out certain activities on a tree, including releasing memory that the tree has consumed. We will implement postorder tree traversal using two methods the first one uses slices and the second one uses stacks. Syntax func append(slice, element_1, element_2…, element_N) []T The append function is used to add values to an array slice. It takes number of arguments. The first argument ... Read More