There are three ways of executing JavaScript on a web browser.
1. Inside <HEAD> tag
2. Within <BODY> tag
3. In an External File
Output:
CareerRide Info
Output:
CareerRide Info
Output:
CareerRide Info
1. Inside <HEAD> tag
2. Within <BODY> tag
3. In an External File
1. Inside <HEAD> tag
Example : Simple JavaScript Program using <HEAD> tag
head.html //File Name
<html>
<head>
<script type = "text/javascript">
function abc()
{
document.write("CareerRide Info");
}
</script>
</head>
<body>
Click the button
<input type=button onclick="abc()" value="Click">
</body>
</html>
Output:
CareerRide Info
2. Within <BODY> tag
Example : Simple JavaScript Program using <BODY> tag
body.html //File Name
<html>
<body>
<script type="text/javascript">
document.write("CareerRide Info");
</script>
</body>
</html>
Output:
CareerRide Info
3. External File
Example : Simple JavaScript Program using External File
external.html //File Name
<html>
<body>
<script type="text/javascript" src="abc.js">
</script>
</body>
</html>
abc.js //External File Name
document.write("CareerRide Info");
Output:
CareerRide Info
Rules for writing the JavaScript code
- Script should be placed inside the <script> tag.
- A semicolon at the end of each statement is optional.
- The single line comment is just two slashes (//) and multiple line comment starts with /* and ends with */.
- Use 'document.write' for writing a string into HTML document.
- JavaScript is case sensitive.
- You can insert special characters with backslash (\& or \$).
