The browser loads the html (DOM) at first. The browser starts to load the external resources from top to bottom, line by line. If a <script> is met, the loading will be blocked and wait until the JS file is loaded and executed and then continue. Other resources (CSS/images) are loaded in parallel and executed if needed (like CSS). Or is it like ...

Apr 11, 2025 · Next, let's look at how the CSS is handled. The browser parses the CSS found on the page (either included in the HTML file, or fetched from external stylesheets), and sorts the different CSS styling rules into different "buckets" based on which HTML elements (represented in the DOM as items called nodes) they will be applied to. The browser ...

Apr 10, 2025 · Navigation is the first step in loading a web page. It occurs whenever a user requests a page by entering a URL into the address bar, clicking a link, submitting a form, as well as other actions. One of the goals of web performance is to minimize the amount of time navigation takes to complete.

Feb 22, 2009 · Here is an example that uses plain JavaScript to inject a CSS link into the head element based on the filename portion of the URL: link.href = file.substr( 0, file.lastIndexOf( "." ) ) + ".css"; Insert the code just before the closing head tag and the CSS will be loaded before the page is rendered.

Jul 14, 2013 · I'm trying to load everything on that page into the content element. I edited the question. @adeneo. I finally found the answer to my problem. The solution is. document.getElementById("content").innerHTML='<object type="text/html" …

Apr 3, 2024 · Dynamic data is fetched server-side at request time and inserted into an HTML document, which is then sent in its entirety to the browser. Prominent examples of this would include Laravel (PHP), Ruby on Rails (Ruby), Flask (Python), and Express + …

Sep 23, 2019 · Are you ready for a fast journey to understand how the browser renders your web page? Once you visit a website using any browser. your browser makes an HTTP GET request to load the HTML...

Mar 16, 2017 · In a discussion around optimizing front-end assets, I recently had occasion to explain how browsers process <script> tags — which seemed useful enough to be reposted here.

Apr 11, 2021 · By using JavaScript to dynamically load the appropriate CSS file, you can tailor the user experience and ensure that your website looks and functions optimally for each user. To load CSS files with JavaScript, follow these steps: The first step is to create a new link element using the document.createElement() method.

Feb 2, 2024 · Sometimes, we must load an external HTML file into another HTML file using JavaScript or jQuery, depending on project requirements. This tutorial exemplifies how to load an external HTML file using JavaScript and jQuery. HTML Code (home.html): HTML Code (index.html): <script src=