Most developers implement multi-select dropdowns the WRONG way.
This is not a basic select.
This is a real-world, interview-level multi-select component — like Gmail’s “To” field.
In this React machine coding video, we build a:
• Searchable multi-select dropdown
• Selected items shown as tags/chips
• Add & remove multiple selections
• Clear all selections
• Click outside to close
• Auto-focus search input
• Fully controlled React state
This exact UI pattern is frequently asked in frontend machine coding rounds.
If you’re preparing for:
• Frontend interviews
• React machine coding rounds
• Senior frontend roles
• UI-heavy product interviews
— this video is for you.
📌 Code covered in this video:
- useState for dropdown, selected values & search
- useRef for click outside & auto-focus
- useEffect for lifecycle handling
- Filtering options based on search
- Controlled checkboxes
- Tag-based selection UI
🔗 Code snippet & explanation included in the video.
https://codesandbox.io/p/sandbox/fdktft
#React #MachineCoding #FrontendInterviews
