So we should import user.js into hello.js and get the required functionality from it instead of relying on global variables. 4. Module code is executed only once. Pacing Guides for 5 Lessons, including Learning Objectives and Assessment Questions 1. In the browser, it contains the url of the script, or a current webpage url if inside HTML: That’s kind of a minor feature, but for completeness we should mention it. As modules support special keywords and features, we must tell the browser that a script should be treated as a module, by using the attribute