728x90 반응형 SMALL type alias1 [TypeScript] 타입 호환성과 별칭 타입 호환성(Type Compatibility) // sub 타입은 sup 타입의 서브 타입. let sub1: 2 = 2; let sup1: number = sub1; sub1 = sup1; // error Type 'number' is not assignable to type '2'. let sub2: number[] = [3]; let sup2: object = sub2; sub2 = sup2; // error Type '{}' is missing the following properties from type'number[]' let sub3: [number, number] = [3,4]; let sup3: number[] = sub3; sub3 = sup3; //error Type 'number[.. 2022. 7. 18. 이전 1 다음 728x90 반응형
