added channels

Author: tbhaxor

channels/go.mod

@@ -0,0 +1,3 @@
+module channels
+
+go 1.20

channels/main.go

@@ -0,0 +1,48 @@
+package main
+
+import "fmt"
+
+func sum(a, b int, result chan int) {
+result <- a + b
+}
+
+func main() {
+// create a channel of type int.
+c := make(chan int)
+
+// call goroutine using anonymous function.
+go func() {
+// send a value to the channel.
+c <- 10
+}()
+
+// receive the value from the channel.
+v := <-c
+
+// print the value.
+fmt.Println(v)
+
+// pass the channel to function
+go sum(10, 20, c)
+
+v = <-c
+fmt.Println(v)
+
+// buffered channel with a capacity of 3
+ch := make(chan int, 3)
+
+go func() {
+// send until the buffer is full
+// (non-blocking until it is full)
+ch <- 1
+ch <- 2
+ch <- 3
+}()
+
+// receive as long as there's data in the buffer
+result1 := <-ch // No block
+result2 := <-ch // No block
+result3 := <-ch // No block
+
+fmt.Printf("%d\n%d\n%d\n", result1, result2, result3) // Output: 1 2 3
+}

go.work

@@ -1,6 +1,7 @@
 go 1.20
 
 use (
+./channels
 ./datatypes
 ./deferfunc
 ./funcname