Welcome to tutorial no. 29 in Golang tutorial series. What is Defer? Defer statement is used to execute a function call just before the surrounding function where the defer statement is present returns. The definition might seem complex but it’s pretty simple to understand by means of an example. Example 1package …

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Welcome to tutorial no. 28 in Golang tutorial series. Polymorphism in Go is achieved with the help of interfaces. As we have already discussed, interfaces are implicitly implemented in Go. A type implements an interface if it provides definitions for all the methods declared in the interface. Let’s see how …

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Welcome to tutorial no. 27 in Golang tutorial series. Go does not support inheritance, however, it does support composition. The generic definition of composition is “put together”. One example of composition is a car. A car is composed of wheels, an engine and various other parts. Composition by embedding …

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Welcome to tutorial no. 26 in Golang tutorial series. Is Go Object Oriented? Go is not a pure object oriented programming language. This excerpt taken from Go’s FAQs answers the question of whether Go is Object Oriented. Yes and no. Although Go has types and methods and allows an object-oriented style of …

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Welcome to tutorial no. 25 in Golang tutorial series. In this tutorial, we will learn about mutexes. We will also learn how to solve race conditions using mutexes and channels. Critical section Before jumping to mutex, it is important to understand the concept of critical section in concurrent programming. When a …

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Welcome to tutorial no. 24 in Golang tutorial series. What is select? The select statement is used to choose from multiple send/receive channel operations. The select statement blocks until one of the send/receive operations is ready. If multiple operations are ready, one of them is chosen at random. The syntax is …

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Welcome to tutorial no. 23 in Golang tutorial series. What are buffered channels? All the channels we discussed in the previous tutorial were basically unbuffered. As we discussed in the channels tutorial in detail, sends and receives to an unbuffered channel are blocking. It is possible to create a channel with a …

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Welcome to tutorial no. 22 in Golang tutorial series. In the previous tutorial, we discussed about how concurrency is achieved in Go using Goroutines. In this tutorial we will discuss about channels and how Goroutines communicate using channels. What are channels Channels can be thought of as pipes using which …

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Welcome to tutorial no. 21 in Golang tutorial series. In the previous tutorial, we discussed concurrency and how it is different from parallelism. In this tutorial, we will discuss how concurrency is achieved in Go using Goroutines. What are Goroutines? Goroutines are functions or methods that run concurrently with …

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Welcome to tutorial no. 20 in Golang tutorial series. Go is a concurrent language and not a parallel one. Before discussing how concurrency is taken care in Go, we must first understand what is concurrency and how it is different from parallelism. What is concurrency? Concurrency is the capability to deal with lots of …

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