Introduction to Java Script

WHAT
PRO AND CONS
HOW TO USE
IMPLEMENT
EXAMPLE
OBJECTIVES

 Dynamic Programming Language.
 Its syntax was influenced by C.
 Developed by Brendan Eich
 Client-side scripts to interact with the user
 Control the browser,
 Alter the document content that is
displayed
 Also used in used in server-side
programming, game development and the
creation of desktop and mobile
applications

 Javascript is executed on the client
side
 Javascript is a relatively easy
language
 Javascript is relatively fast to the end
user
 Extended functionality to web pages
 JavaScript reduced the Server Load.

 Security Issues
 Javascript rendering varies

 Knowledge of HTML
 Text Editor
 Web Browser
 Some Idea and mind

 JavaScripts in HTML must be
inserted between <script> and
</script> tags.
 JavaScripts can be put in the <body>
and in the <head> section of an
HTML page.

 Internal Java Script
 External Java Script
 Inline Java Script

<html>
<head>
<script>
//Type JS Script Here
</script>
</head>
<body>…</body>
<html>

<a href="#" onclick="alert('Hi')">
Click Me
</a>

var i=0;
function test() {
for (i=0; i<10; i++) {
document.write("Hello World!");
}
}
test();

<html>
<head>
<title>Hello World in JS</title>
<script language="javaScript">
document.write("Hello World");
</script>
</head>
<body>
</body>
</html>

<html>
<head>
<title>InLine JS</title>
</head>
<body>
<input type="text" value="Your Name"
onFocus="this.value=''"/>
</body>
</html>

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Introduction to Java Script

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