TypeScript 타입 참조

TypeScript 내장 타입 및 유틸리티 타입 참조 가이드.

Primitive Types

stringText values: 'hello'

numberNumbers: 42, 3.14

booleantrue / false

nullExplicit null

undefinedUninitialized

symbolUnique identifier

bigintLarge integers: 100n

anyOpt out of type checking

unknownSafe alternative to any

neverValue that never occurs

Utility Types

Partial<T>All properties optional

Required<T>All properties required

Readonly<T>All properties readonly

Record<K,V>Object with key type K, value V

Pick<T,K>Pick subset of properties

Omit<T,K>Remove subset of properties

Exclude<T,U>Exclude from union

Extract<T,U>Extract from union

NonNullable<T>Remove null/undefined

ReturnType<T>Return type of function

Parameters<T>Parameter types as tuple

Awaited<T>Unwrap Promise type

Type Operators

typeof xType of variable

keyof TUnion of keys

T[K]Indexed access type

T extends U ? X : YConditional type

infer RInfer type variable

T & UIntersection type

T | UUnion type

T[]Array of T

[T, U]Tuple type

(...args: T) => RFunction type

Common Patterns

interface vs typeinterface: extendable, type: aliases + unions

as constNarrow to literal types

satisfiesType-check without widening

!Non-null assertion (use sparingly)

?? operatorNullish coalescing

?.Optional chaining

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이 도구에 대해

TypeScript 내장 타입 및 유틸리티 타입 참조 가이드.

TypeScript 타입 참조

Primitive Types

Utility Types

Type Operators

Common Patterns

관련 도구

이 도구에 대해

Primitive Types

Utility Types

Type Operators

Common Patterns