27 lines
622 B
TypeScript
27 lines
622 B
TypeScript
// An intersection type has those members that are present in any of its constituent types,
|
|
// with types that are intersections of the respective members in the constituent types
|
|
|
|
interface A { a: string }
|
|
interface B { b: string }
|
|
interface C { c: string }
|
|
|
|
var abc: A & B & C;
|
|
abc.a = "hello";
|
|
abc.b = "hello";
|
|
abc.c = "hello";
|
|
|
|
interface X { x: A }
|
|
interface Y { x: B }
|
|
interface Z { x: C }
|
|
|
|
var xyz: X & Y & Z;
|
|
xyz.x.a = "hello";
|
|
xyz.x.b = "hello";
|
|
xyz.x.c = "hello";
|
|
|
|
type F1 = (x: string) => string;
|
|
type F2 = (x: number) => number;
|
|
|
|
var f: F1 & F2;
|
|
var s = f("hello");
|
|
var n = f(42);
|