---
id: wiki-2026-0508-알-수-없는-외부-데이터-검증-unknown-types
title: 알 수 없는 외부 데이터 검증 (unknown types)
category: 10_Wiki/Topics
status: duplicate
canonical_id: unknown-type-validation
duplicate_of: "[[Unknown Type Validation]]"
aliases: []
source_trust_level: A
confidence_score: 0.9
verification_status: redirected
tags: [duplicate, typescript, validation, unknown, type-safety]
last_reinforced: 2026-05-10
github_commit: pending
---

# 알 수 없는 외부 데이터 검증 (unknown types)

> **이 문서는 [[Unknown Type Validation]] 의 중복본입니다.** Canonical 문서로 redirect.

## 핵심 요약 (specialization aspects)
- 매 `unknown` = type-safe `any` — 매 narrow 매 use 가능.
- 매 narrowing strategies: typeof guards, instanceof, custom type predicates, schema validators (Zod 4, Valibot).
- 매 boundary validation: API responses, JSON.parse, postMessage, localStorage, URL params, FormData.

## 🔗 Graph
- 변형: [[Type Predicates]] · [[Type Narrowing]]
- Adjacent: [[Runtime Validation]]

## 🕓 변경 이력
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | 중복 처리 — canonical 문서로 redirect |
