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function main() {
    let a: number | string;

    a = "Hello";

    if (typeof(a) == "string")
    {
	print("str val:", a);
    }

    a = 10.0;

    if (typeof(a) == "number")
    {
	print("num val:", a);
    }

    print("done")
}

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function main() {
    let a: number | string;

    a = "Hello";

    if (typeof(a) == "string")
    {
	print("str val:", a);
    }

    a = 10.0;

    if (typeof(a) == "number")
    {
	print("num val:", a);
    }

    print("done")
}

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function main() {
    let a: number | string;

    a = "Hello";

    if (typeof(a) == "string")
    {
	print("str val:", a);
    }

    a = 10.0;

    if (typeof(a) == "number")
    {
	print("num val:", a);
    }

    print("done")
}