Key Differences: jQuery vs React

Feature jQuery React
Type JavaScript library for DOM manipulation JavaScript library for UI development
Purpose Works with the DOM directly Uses Virtual DOM for efficiency
Performance Slower for large applications Faster due to Virtual DOM
Architecture Procedural, imperative approach Component-based, declarative
State Management No built-in state management Uses useState and global state tools
Reusability No reusable components Component-based architecture
Learning Curve Easier, especially for beginners Steeper, but powerful for large apps
Popularity Used in old projects & simple tasks Industry standard for modern web apps


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