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mirror

Language/Type: JavaScript arrays

Write a function named mirror that accepts an array of strings as a parameter and produces a mirrored copy of the array as output, with the original values followed by those same values in the opposite order.

For example, if an array variable named arr contains the values ["a", "b", "c"], after a call of mirror(arr) it should contain code>["a", "b", "c", "c", "b", "a"].

If there are an odd number of values, the last element is not moved. You may assume that the array is not null and that no element of the array is null.

Function: Write a JavaScript function as described, not a complete program.

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