![]() So, a tag placed within a page’s tag executes before the HTML body. The JavaScript contained within or referenced by tags is executed immediately when its portion of the page loads. There are two useful principles to keep in mind when using the tag: In both cases, when the HTML page loads, the web browser executes any JavaScript that it finds, in sequential order. Referencing the path to a JavaScript file using the tag’s src attribute.Writing JavaScript code directly within an opening and closing tags.The tag can be used to embed JavaScript into a web page in the following two ways: The following sections further explain how the tag behaves when added to HTML markup and the different ways you can use it to add JavaScript to a web page. The tag is used to add JavaScript to an HTML web page. You also learn about tag attributes that help you optimize your web page’s loading time. This guide shows you how to use the tag to link JavaScript to an HTML page. In order to use JavaScript on an HTML web page, you must use the tag to either write your JavaScript code directly in your HTML markup or to link to an external JavaScript file. ![]() User triggered events, animations, and content updates are among some of the features on a web page that are powered by JavaScript. JavaScript is a scripting language that is widely used to add dynamic functionality to a web page, alongside HTML and CSS.
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