JavaScript DOM Tutorial: Build a Searchable Course List
Web Development Learning Series — Part 3 of 10 · Intermediate JavaScript becomes easier to learn when each interaction has a clear job. This project filters a course list as the reader types. It teaches events, arrays, and DOM updates without a framework. The finished feature should handle three situations: a matching query, an empty query that shows everything, and a query with no matches. Decide those behaviors before writing the event handler.