JavaScript Include External JS
Last Updated : Mar 11, 2024
IN - JavaScript | Written & Updated By - Riya
In this article we will show you the solution of JavaScript include external JS, there are many interpreted, lightweight, and compiled programming languages available, but JavaScript is one of the most popular.
Asynchronous and single-threaded, it operates in a synchronous fashion. Scripts in JavaScript are executed as plain text while programs are called classes.
The scripts can be added directly to the HTML page or used in an external JavaScript file.
A JavaScript engine can be run on any device with a special JavaScript program, such as the browser, server, or even directly from the device itself. Server-side and client-side JavaScript applications are created with JavaScript.
Alternatively, JavaScript code can be written in an external file with a .js extension and linked inside the head> or body> tag of the HTML file where it will be included.
An external script's URL is specified in the src attribute.
HTML pages can be made more interactive with JavaScript.
There are a number of scripting languages, but JavaScript is the most popular.
An all-purpose programming language is a scripting language. HTML pages often contain JavaScript directly embedded.
In JavaScript, scripts are executed without a preliminary compilation (meaning they are interpreted). A JavaScript license is not required for anyone to use it.
Tags for scripts
The <script> tag is what we use to include our JavaScript. It's a lot like the <link> tag you've already been using to include your CSS files.
In this snippet, a script tag is used to write JavaScript code. In our HTML page, we have written this JavaScript directly. The page will load automatically, triggering an alert box.
<script type="text/javascript">
alert("This alert box was called with the onload event");
</script>
When using the script tag, we must always use the attribute name and value of type="text/javascript".
Step By Step Guide On JavaScript Include External JS :-
<!DOCTYPE html> <html> <head> <title>TalkersCode External JS</title> </head> <body> <h2>TalkersCode</h2> <script src="GfG.js"></script> /* External Javascript */ </body> </html>
- In the first step, we write <HTML>, which tells the browser what HTML version we're using. HTML tags have used at the beginning of HTML documents.
- Using the <head> tag, we can describe the heading of the project.<title> and </title> are open.
- Further, there is a body tag, which describes what content will appear on the page. All website content can be written here.
- Then we can be added to an HTML page with a <script> tag.
- After that </script></body></html> and code should be executed after closing all tags.
Conclusion :-
The external JavaScript is code written in another file with the extension .js and then linked inside the current HTML file inside the head or body tags.
The script tag can be used with the attribute src to include an external JavaScript file.
Src is already used when images are used. It should be the path that is assigned to the src attribute.
I hope this article on JavaScript include external JS helps you and the steps and method mentioned above are easy to follow and implement.
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