First Simple JavaScript Example : Fully Explained

we have already discussed our first JavaScript example (Here). In this tutorial we are going to see different tags used in first JavaScript Example.

Basic JavaScript Example :

<!DOCTYPE html>
<html>
<head>
  <title>My first script</title>
</head>
<body>
   <script>
    document.write("Hello, world!");
   </script>
</body>
</html>

Basic Tags and Attributes Explained !!!



	Tag
	Attribute
	Meaning


	html
	-
	html Contains the HTML part of the Web page


	head
	-
	Contains the header part of the Web page


	script
	-
	Contains the Web page’s script or a reference to the external script file.Usually JavaScript	but not always.



	src
	The location of an external script


	title
	-
	Contains the title of the Web page


	body
	-
	Contains the body part of the Web page

Explanation :

<script>

Opening script tag.
Tells the browser to expect JavaScript instead of HTML.

document.write(“Hello, world!”);

First line of JavaScript.
It takes the document window and writes “Hello, world!” into it A.
Note the semi-colon at the end of the line this tells the browser’s JavaScript interpreter that the line is ending.
Semicolon is Optional

</script>

Ends the JavaScript and tells the
Browser to start expecting HTML again.