A channel is a communication mechanism that allows goroutines to exchange data, among other things.
However, there are some specific rules. Firstly, each channel allows the exchange of a particular data type, which is also called the element type of the channel, and secondly, for a channel to operate properly, you will need someone to receive what is sent via the channel. You should declare a new channel using the chan keyword, and you can close a channel using the close() function.
Finally, a very important detail: when you are using a channel as a function parameter, you can specify its direction; that is, whether it is going to be used for sending or receiving. In my opinion, if you know the purpose of a channel in advance, you should use this capability because it will make your programs more robust, as well as safer. You will not be able to send data accidentally...
