Channels
This Go code demonstrates the use of channels for communication between goroutines. Let's break it down with inline comments:
Output
Explanation:
package main
: Indicates that this Go file belongs to the main executable package.import "fmt"
: Imports the "fmt" package for formatting and printing.func main() { ... }
: The main function, where the execution of the program begins.messages := make(chan string)
: Creates a channel named 'messages' for communication between goroutines. The type of data that can be sent through this channel is a string.go func() { messages <- "ping" }()
: Launches a new goroutine with an anonymous function. This function sends the string "ping" into the 'messages' channel. This is an example of sending data to a channel.msg := <-messages
: Receives a message from the 'messages' channel and assigns it to the variable 'msg'. This is an example of receiving data from a channel.fmt.Println(msg)
: Prints the received message, which is "ping" in this case.
In summary, this code demonstrates the basic usage of channels for communication between goroutines. The main goroutine creates a channel, launches another goroutine to send a message into the channel, and then receives and prints the message in the main goroutine. This showcases how channels facilitate communication and synchronization between concurrently running goroutines.
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