jQuery Performance Optimization
Cache selections, limit DOM thrashing, and delegate events.
Cache selections, limit DOM thrashing, and delegate events.
Avoid ready issues, over-selecting, html() XSS, and missing delegation.
Prevent XSS: prefer .text(), sanitize HTML, and protect AJAX with nonces/CSRF tokens.
Practice common jQuery interview questions with concise answers.
Practice with todos, live search, modal forms, and sortable dashboards.
Reorder lists with sortable; save order via AJAX on update.