HTML and HTML5 ( tags, attributes, custom attributes and its uses, difference,benefits of html5)
CSS, SCSS, Bootstrap and Tailwind, Responsive Design
JS (data types, hoisting, closure, this, all type of functions, promises, callback, event delegation and bubbling, cookies, sessions, local storage,prototypal inheritance, the Loop, caching and memoization )
TS ( types , interfaces , conditional , any, unknown , never )
React (class and functions components( how func comps are different and created and updated ), hooks, explain useState, useEffect, useLayout,useRef, useMemo ) Memo .
and its frameworks
State Managers
WebPack,Vite or other bundlers
CSR,SSR,SSG
Accessibility
Code Quality
Web Performance and UI improvements
Problem Understanding and Solving
Debugging Errors
Ways of tackling unknown problems