Adapted from: Chapter 4 of Robert W. Sebasta, Programming the World-Wide Web, 3rd Edition, Addison Wesley, 2006. Supporting: Contact Hour 8.

Write, test and debug (if necessary) XHTML files that include JavaScript scripts for the following problems. When required to write functions, you must include a script to test the function with at least two different data sets.

1. Output: A table of numbers from 5 to 15 and their squares and cubes, using alert. (See solution: on jsFiddle)
2. Output: The first 20 Fibonacci numbers, which are defined as in the following sequence 1, 1, 2, 3, … where each number in the sequence is the sum of the two previous numbers. Use document.write to produce the output.
3. Modify the script of Exercise 2 to input a number, n, using prompt, which is the number of the Fibonacci number required as output.
4. Function: no_zeros; Parameter: An array of numbers; Result: The array must be modified to remove all zero values. Returns: true if the given array included zeros; false otherwise.

Try these additional exercises if you need more challenges. They are also from Chapter 4 of Sebasta.

1. Function: counter; Parameter: An array of numbers; Returns: The numbers of negative elements, zeros, and values greater zero in the given array. Note: You must use a switch statement in the function.
2. Function: row_averages; Parameter: An array of arrays of numbers. Results: An array of the averages of each of the rows of the given matrix.

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