Programming Languages Directory

 

The JavaScript Programming Language

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JavaScript initialy started out as a scripting language being developed by Netscape called LiveScript™ in the Navigator 2.0 beta version of the browser. This language did not pick up much until Sun Microsystems' Java programming language became popular and Netscape changed the name to JavaScript.

Significant Language Features

• Does not require a compiler for client-side implimentation-This opens it up to people that for one reason or another cannot access a compiler or the CGI-BIN of a server.
• Ability to interact with Java applets-In Navigator 3.0 JavaScript can interact with Java applets that are running in the browser.
• Ability to interact with forms elements-Allows for more user interaction in web pages.

Areas of Application

Dynamic web pages

Sample Program

Source Code: (Hello World)
&ltHTML>
&ltHEAD>
&ltTITLE&gtHello World With JavaScript</TITLE>
</HEAD>
&ltBODY>
&ltCENTER>
&ltFORM Name="Form1" ACTION="">
&ltINPUT TYPE=BUTTON VALUE="Click me" NAME="BtnHello" OnClick="Hello()">
</FORM>

</CENTER>

&ltSCRIPT LANGUAGE="JavaScript">
<!--

function Hello ()
{
alert("Hello World!")
}

//-->
</BODY>
</HTML>

When Click me is pressed the phrase "Hello World" is displayed.