File: instanceofOperator.ts

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// Spec:

// The instanceof operator requires the left operand to be of type Any or an object type, and the right 

// operand to be of type Any or a subtype of the  Function  interface type. The result is always of the 

// Boolean primitive type.



module test {

    class Object { }

    var obj: Object;







    4 instanceof null;



    // Error and should be error

    obj instanceof 4;

    Object instanceof obj;



    // Error on left hand side

    null instanceof null;

    obj instanceof Object;

    undefined instanceof undefined;

}