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Toouren
reviewed
Apr 4, 2021
| 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 No newline at end of file |
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
| 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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