JavaScript – JavaScript in Head and Body Tag

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digitalample eye
JavaScript can be written inside the both <head> section and <body> section. Sometime we need to write the JavaScript code in both section for better understand or calling the different functions. While writing JavaScript code <head> and <body> section we have to use <script> tag for both.

Here you can see an example where I have written JavaScript code in two ways by putting inside <head> section and by putting inside <body> section. These two are the formal ways to write scripting code.

I always put in the body section of HTML document because It will help to load the page faster.

HTML / JS Code

<html>
<head>
<script type="text/javascript">
function book(){
alert ("JavaScript is Awesome");
}
</script>
</head>
<body>
<script type="text/javascript">
document.write("Leave it!! No need to develop.");
</script>
<input type="button" onClick="book()" value="DEVELOP">
</body>
</html>

Output




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