Accessibility (A11y)

ARIA (Accessible Rich Internet Applications)

Asynchronous Rendering

Context API

CSS Modules

CSS Preprocessors

Data Binding

Declarative Programming

ECMAScript (ES)

Error Boundaries

Flexbox

Fragments

Higher-Order Component (HOC)

Hooks

Immutable Data Structures

Intersection Observer API

JSX (JavaScript XML)

Key Prop

Lazy Loading

Lifting State Up

Media Queries

Memoization

Node

Pseudo-classes

Pseudo-elements

Reconciliation

Refs

Render Props

Responsive Design

Server Components

Shorthand Properties

Specificity

State Management

Styled Components

Tailwind CSS

Thunk

Transition Group

Tree Shaking

Uncontrolled Components

useCallback Hook

useEffect Hook

useMemo Hook

useRef Hook

Vendor Prefixes

Viewport Units

Virtual DOM

Web Components

Web Vitals

Webpack

XMLHttpRequest (XHR)