-Dev Build
-Local Server
-HMR = HOT MODULE REPLACEMENT
-Use file watching algorithm to track changes
-Caching enables faster builds
-Image optimization
-Minification
-Bundling
-compress
-Consisent Hashing
-Code splitting
-Differential Bundling - support all and older browsers
-Diagnostic
-Error Handlig
-HTTPS support
-Tree Shaking - remove unused code
-different dev and prode bundles
// Headers // -logo // -nav-item
// body // -search // -Resturant container // -Resturant Card // -name , rating , cuisine , // Footer // -Copyright // -links // -Address // -Contact
-They are normal JS function that are pre-built in React -Most useful Hooks are : -useState() -useEffect()