) which improve both web accessibility and search engine optimization (SEO). CSS (Style):
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The Document Object Model (DOM) is the programming interface for web documents. Modern JavaScript interacts with the DOM efficiently using methods like querySelector() and querySelectorAll() . Event delegation—attaching a single event listener to a parent element to manage events for multiple child elements—is used to keep memory consumption low and performance high. 4. The Front-End Workflow and Tooling