How would you implement specific error messages for failed validation rules?
WHAT IT TESTS: Architecting validation as structured data instead of booleans. A GOOD ANSWER COVERS: error codes from validators, a mapping layer separating logic from copy, and accessible inline rendering.
WHAT IT TESTS: Your ability to design a validation pipeline that emits granular, machine-readable failures and decouples business rules from UI copy. A GOOD ANSWER COVERS: validators returning typed error codes, a catalog or i18n layer translating codes to contextual strings, components binding messages to fields with accessible markup, and timing that avoids premature inline validation. RED FLAG: Treating validation as a boolean gate, embedding user-facing sentences in API logic, or ignoring field proximity and accessibility.
Read the original → nngroup.com
- #validation
- #error-handling
- #frontend-architecture
- #ux-engineering
- #i18n
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