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TypeScript Academy · Lesson

Typing useRef and Event Handlers

Handle DOM refs and synthetic events safely.

Welcome

This lesson covers Typing Useref And Event Handlers in TypeScript with React.

Component Props Interface

Define a props interface for React components to document and enforce the component API.
interface ButtonProps {
  label: string;
  onClick: () => void;
  disabled?: boolean;
}

function Button({ label, onClick, disabled }: ButtonProps) {
  return <button onClick={onClick} disabled={disabled}>{label}</button>;
}

All lessons in this course

  1. Typing React Component Props
  2. Typing useState and useReducer
  3. Typing useRef and Event Handlers
  4. Generic Components and forwardRef
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