#775 – Copying an Array of Anonymously-Typed Objects

You can create an implicitly-typed array that contains an array of anonymously-typed objects.

            var movies = new[] {
                new { Title = "North By Northwest", Year = 1959, Director = "Alfred Hitchcock" },
                new { Title = "Zelig", Year = 1983, Director = "Woody Allen" },
                new { Title = "King Kong", Year = 2005, Director = "Peter Jackson" }};

If you’d like to create a copy of this array, you can use the Clone method. ¬†This will create a new array of the same type and copy all of the anonymously-typed elements to the new array.

            var copy = movies.Clone();
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#280 – Implicitly-Typed Arrays

In the same way that you can declare an implicitly-typed variable, letting the compiler figure out the type of the variable’s value, you can declare implicitly-typed arrays.

In the example below, we declare and initialize both implicitly-typed variables and implicitly-typed arrays.¬† The compiler infers the type–shown in the associated comment.

            // Implicitly-typed variables
            var x = 42;         // int
            var s = "Hooey";    // string

            // Implicitly-typed arrays
            var someArray = new[] { 5, 6, 7 };             // int[]
            var arrB = new[] { new Dog("Bob"), null };     // Dog[]