foreach loop in Go
There’s no foreach loop in Golang.
However we can replicate foreach loop behavior using for loop in Go.
A “for” statement with a “range” clause loops through all elements of an array, slice, string or map.
For-each element it assigns iteration values to corresponding iteration variables if present and then executes the block.
package main
import (
"fmt"
)
func main() {
stringSlice := []string{"Hello", "Golang"}
for index, element := range stringSlice {
fmt.Println(index, element)
}
}
And the output of above foreach loop is
0 Hello
1 Golang
But that’s not exactly the replica of foreach loop, because it contains index.
We can use underscore(_) variable or blank identifier in Golang in place of index variable.
//A foreach loop in Go
for _, element := range stringSlice {
fmt.Println(element)
}