In this module, you'll learn concurrency in Go and master Go parallelism for improved performance. You will also explore Go Fan-In Fan-out patterns to optimize task and data processing.

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Golang for Programmers

Mastering concurrency in Go can make you a highly sought-after developer in today's job market, where multi-core devices are becoming common. The good news is that concurrency in Go is straightforward and efficient, thanks to Go’s robust support for concurrency out of the box. In fact, it's easier and faster to implement than in other major programming languages.
In this module, we'll begin with a general introduction to concurrency and build up to more advanced concepts like Go parallelism. We'll also dive into common patterns, including Go Fan-In Fan-out, which will make our code more efficient. By the end of this module, you'll be equipped to write high-performance, concurrent applications using Go.

Go Concurrency

> A channel is a pipe between goroutines to synchronize execution and communicate by sending/receiving data.

Channels are based on the idea of [Communicating Sequential Processes (CSP)](https://www.educative.io/courses/mastering-concurrency-in-go/communicating-sequential-processes) put forward by Hoare in 1978. 

First of all, let's just cover the basic syntax.
## Creating a Channel
You can create a channel with the following syntax:



The `datatype` is the type of data that you will pass on your channel. For example, to create a channel named `result` of type `int`, you can write:

## Sending on a  Channel
You can send data over your channel by using the following syntax:

Let's continue with our example of `result`. If you want to send `2` on `result`, you can do so using the following code:

The sending of data over the channel will block the code from proceeding further until the receive operation receives the data sent on to the channel. 

The same goes for receiving data on a channel. The receive operation blocks the code until and unless some data is sent by the send operation. 

## Receiving on a Channel
You can receive data from a channel by using the following syntax:



> A channel is a pipe between goroutines to synchronize execution and communicate by sending/receiving data.

Channels are based on the idea of [Communicating Sequential Processes (CSP)](https://www.educative.io/courses/mastering-concurrency-in-go/communicating-sequential-processes) put forward by Hoare in 1978. 

First of all, let's just cover the basic syntax.
# Creating a Channel
You can create a channel with the following syntax:



# Sending on a  Channel
You can send data over your channel by using the following syntax:

The sending of data over the channel will block the code from proceeding further until the receive operation receives the data sent on to the channel. 

The same goes for receiving data on a channel. The receive operation blocks the code until and unless some data is sent by the send operation. 

# Receiving on a Channel
You can receive data from a channel by using the following syntax:



This lesson will introduce you to channels - one of the most vital concepts when it comes to communication in concurrency using Go.


Introduction to Concurrency

Building Blocks of Concurrency in Go

Exam I on Mastering Concurrency in Go

Basic Concurrency Patterns in Go

Exam II on Mastering Concurrency in Go

Conclusion

Channels

Creating a Channel

Sending on a Channel