nthlink github

As websites and apps present increasingly long lists, feeds, and documentation pages, designers look for compact ways to help users scan and jump to meaningful intervals. nthlink is a pragmatic pattern: identify every "nth" element (for example, every 5th or 10th list item or section) and expose an anchor or a highlighted link for that element. The result is an index-like structure that helps users navigate large content sets without cluttering the interface. How nthlink works There are two main approaches: - Pure CSS highlighting: use a selector like :nth-child(5n) to style every fifth element, making those items visually distinct or marking them with an anchor icon. This requires no JavaScript and is useful when you want to call attention to periodic items in a list. - JavaScript-generated anchors/links: scan the DOM for elements matching a selector and programmatically insert anchors or build a side index linking to every nth element. This approach can populate a compact table of contents or jump list dynamically based on content length or viewport size. Typical implementation outline 1. Choose an interval (n) based on content density and screen sizes. 2. Select a query: for lists, document.querySelectorAll('ul > li:nth-child(5n)'); for sections, document.querySelectorAll('section:nth-of-type(3n)'). 3. Optionally insert a named anchor or id into those elements and create a minimal nav list that links to them. 4. Enhance with smooth scrolling, keyboard access, and visual indicators. Use cases - Long documentation pages: link to every 4th heading so readers can quickly jump near the right topic. - Infinite feeds: provide periodic anchors to allow page refresh or return to a familiar point. - Product galleries: create a thumbnail strip that links to every nth product for quicker browsing on mobile. - Data tables or logs: allow rapid jumps to periodic timestamps or rows. Best practices - Accessibility first: ensure generated links are keyboard-accessible, that anchor targets are focusable (tabindex or proper heading semantics), and provide meaningful link text (e.g., "Jump to item 21") rather than generic "link". - Avoid overlinking: choose n to balance reachability and visual simplicity. Too many anchors defeat the purpose. - Responsive intervals: consider changing n based on viewport—smaller screens may need larger n. - Performance: when scanning very large DOMs, debounce or run anchor generation lazily. - Analytics and state: consider hashing anchors into the URL for shareable states and tracking navigation patterns. nthlink is not a silver bullet, but a lightweight, modular technique that complements pagination, search, and index strategies. Used thoughtfully, it improves scannability and gives users more control over long-form or dense interfaces without heavy UI overhead.