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declare class Point
{
constructor(x: number, y: number);
public x: number;
public y: number;
public add(dx: number, dy: number): Point;
static origin: Point;
}
// Type provided by extern declaration
// Because Point is a constructor function, this is inferred
// to be Point and return type is inferred to be void
function Point(x, y) {
this.x = x;
this.y = y;
}
declare function EF1(a:number, b:number):number;
function EF1(a,b) { return a+b; }
var x = EF1(1,2);
// Point.origin declared as type Point
Point.origin = new Point(0, 0);
// Point.prototype declared as type Point
// this inferred as Point because of obj.prop assignment
// dx, dy, and return type inferred using target typing
Point.prototype.add = function(dx, dy) {
return new Point(this.x + dx, this.y + dy);
};
var f : number = 5;
// Object literal type inferred using target typing
// this in function add inferred to be type of object literal (i.e. Point)
// dx, dy, and return type of add inferred using target typing
Point.prototype = {
x: 0,
y: 0,
add: function(dx, dy) {
return new Point(this.x + dx, this.y + dy);
}
};
declare var z;
z = function(a: number) {
a
}
declare class C {
constructor(a:number, b:number);
public a : number;
public b: number;
C1M1(c:number,d:number):number;
}
function C(a,b) {
this.a=a;
this.b=b;
}
C.prototype =
{ a:0,
b:0,
C1M1: function(c,d) {
return (this.a + c) + (this.b + d);
}
};
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