Ep. 4 Nested Checkbox | React Interview Series
Nested checkboxes is a frequent React interview question which also tests the understanding of data structures as well.
In this episode, we build a recursive Nested Checkbox component with proper parent–child sync and indeterminate state (–) using React hooks.
What’s covered:
Recursive rendering in React
Parent & child checkbox sync
Indeterminate checkbox using useRef
Tree traversal with DFS
Immutable state updates
Perfect for React interviews & frontend prep 🚀
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