In an HTML page, mostly text/javascript is used in the <script> tag.
Here’s an example
<script type="text/javascript"> </script>
However, the introduction of HTML5 brought some new improvements. JavaScript became the default language for HTML5 and modern browsers. Therefore, now adding text/javascript isn’t required in <script> tag.
<script> </script>
Let’s see an example in jQuery.
<html>
<head>
<title> jQuery Example</title>
<script src = “https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
document.write("Hello, World!");
});
</script>
</head>
<body>
<h1>Hello</h1>
</body>
</html>
