Introduction to
JavaScript
JavaScript (JS) is a light-weight object-oriented programming language which is used by several websites for scripting the web pages.It is an interpreted, full-fledged programming language that enables dynamic interactivity on websites when applied to an HTML document.
· JavaScript is also known as a scripting language for webpages.
· in May 1995, Marc Andreessen coined
the first code of Javascript named'Mocha'.Later,themarketingteamreplacedthenamewith'LiveScript'.
· Netscape decided to give a similar
name to the scripting language as Java's. It led to'Javascript'.
· But, due to trademark reasons and
certain other reasons, in December 1995,the language was finally renamed to
'JavaScript'.
Why
Study JavaScript?
· JavaScript is one of the 3 languages all web developers must learn:
·
1.HTMLtodefinethecontentofwebpages
·
2.CSStospecifythelayoutofwebpages
·
3.JavaScripttoprogram the behavior of
webpages
Example:
<script>
document.write("Hello
Java Script by JavaScript");
</script>
OUTPUT:
Hello
Java Script by JavaScript
PROGRAM:
AIM: To Display Hello World…! On
web page using Java Script in colors with specific font
<html>
<head><title>My
First Java Script</title>
<script
language="JavaScript" type="Text/JavaScript">
<!--
document.write("<font
face='bookman old style' size=10 color='orange'>");
document.write("Hello
World...!");
document.write("</font>");
document.write("<br><font
face='bookman old style' size=10 color='lightgray'>");
document.write("Hello
World...!");
document.write("</font>");
document.write("<br><font
face='bookman old style' size=10 color='green'>");
document.write("Hello
World...!");
document.write("</font>");
//-->
</script>
</head>
<body>
</body>
</html>
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