Lesson 1: USING JAVA SCRIPT CODE

What is JavaScript? JavaScript is a simple programming language which is used to enhance the interactive features of web pages. It allows you to add special effects, perform calculations, check forms, write interactive games, create security passwords and more.

JavaScript is not Java! Java is coded in a similar fashion to C++ and is not considered an easy language to learn for non-programmers. You don't need to know details about how they differ.

JavaScript code is directly embedded into HTML using the SCRIPT tag as shown below.

<SCRIPT> JavaScript statements... </SCRIPT>

The optional LANGUAGE attribute can also be used to specify the scripting language.

<SCRIPT LANGUAGE="JavaScript">
JavaScript statements...
</SCRIPT>

HTML COMMENT TAGS

To prevent old browsers from trying to read the code, and getting an error on the page, we put it in HTML comment tags as in the example below:

<SCRIPT>
<!--// JavaScript statements...; //-->
</SCRIPT>

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© 2002 Tracy Johnson