ADVANCED COMPUTER

JAVASCRIPT STUDY SHEET - HAND OUT # 1

I. Terminology. NAVIGATOR

BROWSERS

INTERNET EXPLORER

SUN MICRO SYSTEMS

NETSCAPE

MICROSOFT

INTERPRETIVE LANGUAGES

COMPILED LANGUAGES

SOURCE CODE

OBJECT CODE

EXECUTABLE OBJECT

HTML

SCRIPT

LINE TERMINATOR ;

JAVA

JAVASCRIPT

OBJECTS / METHODS

II. Operators.

== equal

!= not equal

< less than

Ø greater than

<= less than or equal

>= greater than or equal

III. IF - Else -

<SCRIPT>

if (navigator.appName == “Netscape”)

{

document.write(“You are using Netscape Navigator.”);

}

else

{

document.write(“You are not using Netscap Navigator. <BR>”);

document.write(“ You must be using Internet Explorer.”);

}

</SCRIPT>

III. Using the ALERT( ) Method. Or Window Status (insert into code)

alert(“Netscape Navigator detected.”);

window.status = “ This is the window status code!”;