CSC 230: Week of 9/24/12

CSC 230: The Week beginning Sept. 24

Homework:

Provide a brief definition of the following terms (in the interface programming context):
- Loop
- Iteration
- Infinite loop
- Off-by-one error
- Increment/Decrement
If you use a source (book or web site), cite your source. (The sites http://whatis.techtarget.com/ and http://www.webopedia.com/ are decent sources for technical definitions. Also see pp. 71-78 of Beginning JavaScript (Wilton & McPeak))
Inchworm

The code loads up an empty drop-down select with the numbers 2 through 10. Next, when a user uses a drop-down select to choose a number between 2 and 10, an inchworm is created from the head and segment images InchwormHead.gif and InchwormSegment.gif. The height of the image varies such that each consecutive image is 90% of the previous one.

Due: Oct. 1
Monday:

http://www.w3schools.com/js/tryit.asp?filename=tryjs_fornext_header (Example of for loop -- Looping through the header tags)
AllWorkAndNoPlay.htm Compares different types of repetition
Color_Loop.htm Another for-loop example
Gauss.htm (yet another for loop)
Tuesday:

1. Sum Check. Use loops to test a relationship about sums. See directions in SumCheck.doc. (This was a test in a different course, but it might give you an idea of what my tests are like.) Uses Cubes.png

2. Multiplying like rabbits. Make a page like that below that adds an image element to a page using a timer. Mine added a picture of a rabbit every half second.
Wednesday

TEST 1 on interfacing and if's. Covers material up to and including last Wednesday. No loops.
Friday:

ChangeWidthAndHeight.htm