AjScript.Expressions.TypeOfExpression.Evaluate C# (CSharp) Méthode

        public object Evaluate(IContext context)
        {
            var value = this.expression.Evaluate(context);

            if (value == null)
                return "null";

            if (value is Undefined)
                return "undefined";

            if (value is string)
                return "string";

            if (Predicates.IsNumber(value))
                return "number";

            if (value is IFunction)
                return "function";

            return "object";
        }

        public void EvaluateUndefined()
        {
            TypeOfExpression expr = new TypeOfExpression(new VariableExpression("foo"));
            var result = expr.Evaluate(new Context());

            Assert.IsNotNull(result);
            Assert.AreEqual("undefined", result);
        }