block1.go

package main

func main() {
    // Use `nil` as zero values
    _ = interface{}(nil)
    _ = (*struct{})(nil)        // () around *struct{} is necessary, otherwise Go will not be able to know where `*` points to.
    _ = string[](nil)
    _ = map[string]int(nil)
    _ = chan string(nil)
    _ =(func())(nil)            // () around func() is necessary

    // This lines are equivalent to the above lines
    var _ interface{} = nil
    var _ *struct{} = nil
    var _ string[] = nil
    var _ map[string]int = nil
    var _ chan string = nil
    var _ func() = nil

    // This lines are equivalent to the above lines, as `nil` is default values of these types
    var _ interface{}
    var _ *struct{}
    var _ string[]
    var _ map[string]int
    var _ chan string
    var _ func()
}