JavaScript
and JScript Part 1 |
A limitation of HTML is
that it’s static. Developers need to employ client-side (web browser)
scripting like JavaScript,
JScript
(Microsoft’s implementation of JavaScript) or VBScript to make web
pages dynamic. JavaScript and JScript allow for Dynamic
HTML (DHTML) with interactivity, instantaneous web page updates, animations
and many more attention-grabbing web features. Upon successful completion of
this course, students will have dynamic web pages with JavaScripts to
present to prospective employers as a sample of their work. Seating
is limited to 40 students, and this course is
equivalent to 12 classroom hours.
PREREQUISITES:
Background
Courses—Knowledge
of HTML AND prior programming experience OR an
introductory programming course.
Internet Access—Search
the web for a free provider like www.netzero.net or www.bluelight.com.
E-mail Address—Search
the web for a free provider like www.yahoo.com or www.hotmail.com.
Operating System—Windows
95/98/2000 or NT 4.
Course Browser—Internet
Explorer 5+. Download for free from www.microsoft.com/windows/ie/default.htm.
Although JavaScript can be browser-independent, the online courseware including
this page may utilize the eXtensible Mark-up Language (XML) and requires
IE5+. Students are encouraged to use the latest version of Netscape’s
Navigator/Communicator in addition to IE5+ when testing and de-bugging their
web pages.
COURSE DESCRIPTION:
This online course begins with the JScript (JavaScript) Language Reference
which is similar to the Microsoft
Developers' Network library. Using a project-orientated approach, students
learn the JavaScript needed to create (1) scrolling messages, (2) pop-up
windows, (3) form validators/calculators and (4) simple image rollovers. Topics
include variables, arrays, data types, forms, control statements, functions,
events and objects. Upon successful completion of this course, students will
have dynamic web pages with JavaScripts to present to prospective
employers as samples of their work.
Beginning Fall 2000, the following textbook will be required for both JavaScript courses:
JavaScript
Complete Concepts and Techniques, Thomson Learning Course
Technology,
ISBN:
0789556421.
The book
ships in 24 hours and arrives in three to five days.
COURSE GRADE: No letter
grade will be assigned. Students will receive either credit (CR) or no credit
(NC) based upon an easy quiz and weekly participation in the class discussion
board. All quiz questions will be viewable well before the quiz due date and
students are expected
to help each other in all
aspects of the course including discussing the correct answers to the quiz on
the class discussion board.
COURSE SYLLABUS:
1.
Install
the JScript (JavaScript) Language Reference
2.
Evolution
of Mark-up
Web Browsers and Scripting Standards
3.
Scripting
Technologies
Client-side vs. Sever-side Scripting
VBScript, JScript and JavaScript
4.
Scripting
(Programming) Crash Course (Review Only)
Data Types, Variables, Constants,
Operators and Arrays
Control Statements, Functions and Events
Commenting
Code and JavaScript File Includes
5.
Project
1: Scrolling Messages
6.
Project
2: Pop-up Windows
7.
Project
3: Form Validators/Calculators
8.
Project
4: Simple Image Rollovers
9.
Putting
It All Together.
TO BEGIN THIS COURSE:
If you are eager
to begin, you may download and install the JScript
Language Reference and review Module 3 shown below.
Notes
Section
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Main
Text
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Module 1.0
Read JScript
Tutorial. |
Download
and Install the JScript (JavaScript) Language Reference.
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Module 3.0 *As JavaScript and JScript reach full
compliance with ECMAScript Standards, their inconsistencies in
Netscape and IE browsers will diminish and a vendor-neutral,
client-side scripting language will hopefully emerge on the Web. The European Computer Manufacturers Association’s
(ECMA) goal is to foster a reliable scripting standard. Both Netscape
and Microsoft have pledged future version compliance. |
What are VBScript, JScript and JavaScript?
VBScript: Based on
the Visual
Basic (VB) programming language.
Both VBScript and Visual Basic
for Applications (VBA) are subsets of the VB language. VBScript is an
embeddable language requiring a scripting
host and cannot be compiled into an independent application. JScript: Introduced
by Microsoft to compete against Netscape’s popular JavaScript. Both
JavaScript 1.1 and JScript 2.0 were the source for ECMAScript*,
the only standardized Web scripting language. JavaScript: The first client-side scripting language. Originally called LiveScript. Strategically renamed under agreement with Sun Microsystems to take advantage of the Java marketing publicity. JavaScript and Java are distinctly different languages: JavaScript is interpreted while Java is compiled (into bytecode).
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