package main
import "fmt"
func main() {
if 7%2 == 0 {
num := "first"
} else {
num := "second"
}
fmt.Println(num)
}
The if and else blocks define new scopes. The num
variable is created inside one of these blocks and thus is not visible outside.
what can I use here, if I have this kind of query
In order to properly print num
, you would have to declare it outside of the if-else
blocks. Here’s one solution.
package main
import (
"fmt"
)
func main() {
var num string
if 7%2 == 0 {
num = "first"
} else {
num = "second"
}
fmt.Println(num)
}
Considering going through the Tour of the Go programming language if you haven’t already, then read this article on Scopes in Go.
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