Сулейманов Эмиль #9
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Toouren
reviewed
Apr 4, 2021
| type BarType = unknown; | ||
| type numOrDate = Date | number; | ||
| type BarType = {stringsArrayProp: Array<string>, numbersOrDatesArrayProp: Array<numOrDate>, functionProp: Function}; | ||
| type FooType = {stringProp: string, numberProp: number, barObject: BarType}; | ||
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Toouren
reviewed
Apr 4, 2021
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| console.log(add('20', '21')); //2021 | ||
| console.log(add(20, 21)); //41 |
Toouren
reviewed
Apr 4, 2021
| // 3) В интерфейсы можно добавить поля после создания, а в type нет | ||
| // https://www.typescriptlang.org/docs/handbook/2/everyday-types.html#differences-between-type-aliases-and-interfaces | ||
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| // 4) Интерфейсы не могут расширять объединение type |
Toouren
reviewed
Apr 4, 2021
| @@ -73,7 +73,7 @@ export function logPerson(person: Person) { | |||
| console.log(` - ${person.name}, ${person.age}, ${additionalInformation}`); | |||
| } | |||
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| export function filterUsers(persons: Person[], criteria: User): User[] { | |||
| export function filterUsers(persons: Person[], criteria: {type?: string, name?:string, age?:number, occupation?:string}): User[] { | |||
| return persons.filter(isUser).filter((user) => { | |||
| const criteriaKeys = Object.keys(criteria); | |||
| return criteriaKeys.every((fieldName) => { | |||
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