<script> tag in the
<body> section. This code is executed immediately as soon as the corresponding HTML element is encountered during the parsing of the document.
Note: This example code emphasizes the importance of avoiding inline scripting and using alternative methods for better performance and SEO.
When a script is included with the defer attribute, it will be downloaded in the background while the page continues to load. Once the page has finished loading, the script will then be executed in the order that it appears in the HTML document.
- Better User Experience: With faster page load times, users can access your web page more quickly and have a better user experience. They won’t have to wait as long for the page to load, which can reduce bounce rates and increase engagement.
deferattribute to the script tag that links to the external .js file. This tells the browser to download the script asynchronously while the HTML file is loading, but to defer its execution until the HTML file has been completely parsed.
- Alternatively, you can also use the
asyncattribute instead of the
Sure, here’s an example of the HTML code you can use for the subheading “Understanding Browser Rendering with Defer Attribute”:
Understanding Browser Rendering with Defer Attribute
- Not using variables: One common mistake is not using variables when writing inline scripts. This can lead to code that is difficult to read and understand, and it can also make debugging more difficult.
- Not testing your code: It’s important to test your code before deploying it, especially when using inline scripting. This can help you catch any errors or bugs before they cause problems for your users.
- Not using asynchronous loading: If you’re using inline scripting, it’s important to use asynchronous loading to avoid slowing down your page. You can use the “defer” or “async” attributes to achieve this.
- Always include the defer attribute within the script tag.
- Don’t use defer for scripts that need to run before the page is fully loaded. For example, if you need to load a script that provides critical functionality to the page, you should place it before the closing body tag.
- Don’t use defer for small scripts that load quickly. In these cases, the overhead required to defer the script may actually slow down your page’s performance.
- Avoid using defer when loading third-party scripts or resources. They may not be designed to work with the defer attribute and this can cause problems with the overall functionality of your page.
By following these best practices, you can ensure that you’re using the defer attribute effectively and optimizing the performance of your website.