Write a defining table and a function that returns the value of the middle element in an array. If the array has an even number of elements, then this function must return the average of the two middle elements. The function must have this header:

function getMiddle(list)

Hint: To test your two functions write a separate function that is called from the onclick attribute of a button. This separate test function should create one or more arrays, call the addEnds and getMiddle functions and display the values returned from addEnds and getMiddle.

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