default zero values for go

zero.go

var i int // 0
var f float64 // 0.0
var b bool // false
var s string // ""
fmt.Printf("%v %v %v %q\n", i, f, b, s)
// nil for interfaces, slices, channels, maps, pointers and functions.

var pa *Student   // pa == nil
pa = new(Student) // pa == &Student{"", 0}
pa.Name = "Alice" // pa == &Student{"Alice", 0}

b := Student{ // b == Student{"Bob", 0}
    Name: "Bob",
}
    
pb := &Student{ // pb == &Student{"Bob", 8}
    Name: "Bob",
    Age:  8,
}

c := Student{"Cecilia", 5} // c == Student{"Cecilia", 5}
d := Student{}             // d == Student{"", 0}