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Props and Component Interfaces - Component Architecture | Frontend System Design Interview Prep | Repovive

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Frontend System Design Interview Prep17 sections · 206 units12h total

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Props and Component Interfaces

Defining contracts

Well-defined props make components predictable and reusable.

Good prop design:

Minimal required props
Sensible defaults
Clear naming
Consistent types

Example:

// Good: Clear, minimal
<Button variant="primary" onClick={handleClick}>
  Submit
</Button>

// Bad: Too many required props
<Button color="blue" hoverColor="darkblue"
  fontSize={14} padding={10} onClick={...}>

Interview tip: When designing components, state the props explicitly. It shows you think about reusability.