diff --git a/js-schema/js-schema-tests.ts b/js-schema/js-schema-tests.ts
new file mode 100644
index 000000000..4a9a33e58
--- /dev/null
+++ b/js-schema/js-schema-tests.ts
@@ -0,0 +1,19 @@
+///<reference path="js-schema.d.ts" />
+
+import {default as schema} from 'js-schema';
+
+var Duck = schema({              // A duck
+    swim : Function,               //  - can swim
+    quack : Function,              //  - can quack
+    age : Number.min(0).max(5),    //  - is 0 to 5 years old
+    color : ['yellow', 'brown']    //  - has either yellow or brown color
+});
+
+// Some animals
+var myDuck = { swim : function() {}, quack : function() {}, age : 2, color : 'yellow' },
+    myCat =  { walk : function() {}, purr  : function() {}, age : 3, color : 'black'  },
+    animals = [ myDuck, myCat, {}, /*...*/ ];
+
+// Simple checks
+console.log( Duck(myDuck) ); // true
+console.log( Duck(myCat)  ); // false
diff --git a/js-schema/js-schema.d.ts b/js-schema/js-schema.d.ts
new file mode 100644
index 000000000..10c1460f0
--- /dev/null
+++ b/js-schema/js-schema.d.ts
@@ -0,0 +1,50 @@
+// Type definitions for js-schema
+// Project: https://github.com/molnarg/js-schema
+// Definitions by: Marcin Porebski <https://github.com/marcinporebski>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+
+declare module 'js-schema'
+{
+    export interface Schema
+    {
+        (obj: any): boolean; // test obj against the schema
+    }
+
+    export default function schema(definition: any): Schema
+}
+
+interface NumberConstructor
+{
+    min(n: number): NumberConstructor;
+    max(n: number): NumberConstructor;
+    below(n: number): NumberConstructor;
+    above(n: number): NumberConstructor;
+    step(n: number): NumberConstructor;
+}
+
+interface StringConstructor
+{
+    of(charset: string): StringConstructor;
+    of(length: number, charset: string): StringConstructor;
+    of(minLength: number, maxLength: number, charset: string): StringConstructor;
+}
+
+interface ArrayConstructor
+{
+    like(arr: Array<any>): ArrayConstructor;
+    of(pattern: any): ArrayConstructor;
+    of(length: number, pattern: any): ArrayConstructor;
+    of(minLength: number, maxLength: number, pattern: any): ArrayConstructor;
+}
+
+interface ObjectConstructor
+{
+    like(obj: any): ObjectConstructor;
+    reference(obj: any): ObjectConstructor;
+}
+
+interface FunctionConstructor
+{
+    reference(func: Function): FunctionConstructor;
+}