React and TypeScript for Esri

Links

• Create React App
  • Create React App templates
• Bootstrap
• TypeScript ESLint
• Enums and Alternatives
• React TypeScript cheat sheet
• Emmet cheat sheet
• React event types
• Fetching data with React hooks
• React testing library
• Complete guide to useEffect

Notes

Controlled vs Uncontrolled components

updates:

• Controlled components update on every interaction (keypress, click, etc.)
• Uncontrolled components update when you tell them to (they need code to say WHEN they should update)

re-render:

• Controlled component provoke re-rendering on every update because they're tied to state
• Uncontrolled components may not even provoke re-rendering

external updates:

• Controlled components can reflect updates to data other than from the form field
• Uncontrolled components cannot reflect updates other than through user interactions (typing, clicking, etc.)

collecting data:

• Controlled components are up-to-date
• Data from uncontrolled components may be stale