Interface & Enum with same name get merged

 interface User {

id: string

}

interface User {

name: string

}

var user: User = {

id: '1',

name: "sangram"

}

Here User interface defined twice.It get merged.

ALSO enum with same name get merged

enum Shape {

Line = 0,

}

enum Shape {

Dot = 0, // permitted

}

var sh:Shape = Shape.Dot