Quick Answer
Production jQuery best practices: minify and cache jQuery (use CDN with long cache headers), use SRI hashes for CDN script tags, defer or async load jQuery, use only the jQuery features you need (consider a custom build), minimize plugin count (each adds weight), test in all target browsers, monitor with performance RUM metrics, and have an upgrade path to vanilla JS.
Answer
Modularize code using plugins or IIFE. Use cached selectors and namespaced events. Optimize DOM, AJAX, and animations. Check memory leaks and performance regularly.
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SugharaIQ Editorial Team
Verified Answer
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