How is sequential data reading from a channel implemented?

In Go, sequential reading of data from a channel is performed using the receive operator <-. When you read from a channel, execution blocks until a value appears in the channel. This provides sequential and synchronous access to data.

Example of reading from a channel:

ch := make(chan int)
go func() {
    ch <- 42 // send value to the channel
}()

value := <-ch // read value from the channel, blocking if no data
fmt.Println(value) // will output 42

If you need to read multiple values sequentially, you can use a for range loop:

for v := range ch {
    fmt.Println(v)
}

This loop will read from the channel until it is closed.