Quick Answer
jQuery in legacy systems: introduce it carefully alongside existing code with noConflict(), refactor incrementally - don't rewrite everything at once, document jQuery version dependencies, use $.fn.myPlugin patterns to contain new code, add unit tests (QUnit) before refactoring, and use a feature flag to test new jQuery-based features before full rollout.
Answer
Limit jQuery to specific modules only. Wrap logic in IIFE modules. Use namespaced events for traceability. Avoid conflicts with modern frameworks by scoping jQuery inside containers.
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SugharaIQ Editorial Team
Verified Answer
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