CSC 230: The Week beginning Jan. 13

Homework:
1. Provide a brief definition of the following terms (in the web programming context). For the starred terms you should also include an example
  - Element*
  - Event-Driven
  - IDE
  - Property*
  - Statement*
  - Variable*
  If you use a source (book or web site), cite your source.
  
  Email the document.
2. Design a page with at least two buttons and the corresponding JavaScript code that yields some interactivity which results when the user clicks on those buttons. Example: Mood.htm
  
  Zip up all of the relevant files and email them.
Due: Jan. 21
Monday:

CSC 230 Syllabus

HelloWorld2_s20.html
Tuesday (Lab)

Slideshow on using Visual Studio

Write a program like that seen in the images below:

Once you have reproduced the program shown
- Change the background color
- Change the title
- Change the header
- Change the comment
- Add two more languages (button, span, and function) to your version.
Due: Jan. 21
Wednesday:

Addition_s20.html Introduced parseInt() to make sure user's input was interpreted as numbers and added (as opposed to interpreted as text and concatenated).

To compress files, highlight the file or files, right click and choose Send To/Compressed. It creates a compressed/zipped file (that you might want to rename).

Double clicking on a zipped file makes it look like you have access to the files within, but you really don't have normal access and you must click on Extract to really get at the files within.

A coder often needs to know a file's extension. To view file extensions, search for and open the Control Panel. Choose to "View by" small or large icons and click on the "File Explorer Options" icon. Then on the View tab, find and de-select (uncheck) the "Hide extensions for known file types" option and click OK.
Friday:

Presentation on displaying the Console in the Chrome browser (as a technique for finding errors in code).

ImageDemo_s20.html uses football.jpg. Response to student question about images on web pages. Image's src can be local or remote. (Recall that you can zip a set of files -- that's what you should do if you are submitting an assignment that uses multiple files such as an HTML page with a local image file as its src.)

Addition_s20_v2.html We changed the input type from text to number which made it harder for the user (in some browsers like Chrome) to type characters that are not part of numbers. We saw that a minus sign and an "e" were allowed. Then we introduced if and isNaN() to ask whether or not the user entered a number.