In HTML, you can embed external JavaScript code by specifying the src attribute in the <script> tag. Create external JavaScript files and write code. Use the <script> tag in the <head> or <body> section of your HTML document to link to an external JavaScript file. Write code in an external JavaScript file, such as defining functions or objects. Using external JavaScr in HTML documents by calling functions or methods in external JavaScript files</script>
Writing of HTML external JavaScript code
How to write HTML external JavaScript code?
To embed external JavaScript code in HTML, you need to use the <script></script> tag. The <script></script> tag has a src attribute that points to the location of an external JavaScript file.
<script src="external.js"></script>
Writing steps
1. Create an external JavaScript file
Use a text editor or code editor to create one A new JavaScript file, such as "external.js". Write JavaScript code to this file.
2. Link external JavaScript files
in the or section of the HTML document , use the <script></script> tag to link to an external JavaScript file.
<script src="external.js"></script>
3. Write JavaScript code
In an external JavaScript file, write your JavaScript code. You can define functions, objects, variables and other blocks of code.
For example:
// external.js
function greet() {
alert("Hello world!");
}4. Calling external JavaScript code
Once the external JavaScript file is linked, you can Use it by calling a function or method in the file.
<button onclick="greet()">Click Me</button>
Note:
- Make sure the path to the external JavaScript file is correct. The
-
<script></script>tag should be placed in theorsection of the document. - If you don't want to block the loading of the page, you can use the
asyncordeferattribute.
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