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