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.
The above is the detailed content of How to write html external link js code. For more information, please follow other related articles on the PHP Chinese website!
What is the purpose of the <datalist> element?Mar 21, 2025 pm 12:33 PMThe article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159
What is the purpose of the <progress> element?Mar 21, 2025 pm 12:34 PMThe article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati
How do I use HTML5 form validation attributes to validate user input?Mar 17, 2025 pm 12:27 PMThe article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.
What is the purpose of the <iframe> tag? What are the security considerations when using it?Mar 20, 2025 pm 06:05 PMThe article discusses the <iframe> tag's purpose in embedding external content into webpages, its common uses, security risks, and alternatives like object tags and APIs.
What is the purpose of the <meter> element?Mar 21, 2025 pm 12:35 PMThe article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex
What are the best practices for cross-browser compatibility in HTML5?Mar 17, 2025 pm 12:20 PMArticle discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.
What is the viewport meta tag? Why is it important for responsive design?Mar 20, 2025 pm 05:56 PMThe article discusses the viewport meta tag, essential for responsive web design on mobile devices. It explains how proper use ensures optimal content scaling and user interaction, while misuse can lead to design and accessibility issues.
How do I use the HTML5 <time> element to represent dates and times semantically?Mar 12, 2025 pm 04:05 PMThis article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
WebStorm Mac version
Useful JavaScript development tools
Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.
