22 lines
574 B
JavaScript
22 lines
574 B
JavaScript
// Foo is a class-like function
|
|
function Foo() {
|
|
this.x = 0; // constructs objects with property x
|
|
}
|
|
Foo.y = 0; // has static property y
|
|
Foo.prototype = { m() { return 0; } };
|
|
|
|
// exporting Foo directly doesn't work
|
|
// Foo's instance and static props are not picked up
|
|
exports.Foo = Foo;
|
|
|
|
// so you want to type Foo, by declaring it as a class
|
|
interface IFooPrototype {
|
|
m: () => number;
|
|
}
|
|
interface IFoo extends IFooPrototype {
|
|
x: boolean; // error, should have declared x: number instead
|
|
static (): void;
|
|
constructor(): void;
|
|
}
|
|
exports.Foo2 = (Foo: Class<IFoo>);
|