Quick Answer
Maintaining large jQuery projects: split code into modules (revealing module pattern or CommonJS), use a build tool (Gulp, Webpack) to concatenate and minify, namespace all events and data keys, write unit tests with QUnit or Jest (mock the DOM with jsdom), document plugin APIs, use ESLint with jQuery rules, and keep jQuery and plugins updated.
Answer
Modularize code using IIFEs or plugins. Cache selectors and limit DOM access. Use namespaced events for clarity. Optimize AJAX, animations, and dynamic updates. Document code for scalability.
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SugharaIQ Editorial Team
Verified Answer
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