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13 changes: 11 additions & 2 deletions src/task_1/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,17 @@
* который написан в функции logObj компилировался и исполнялся корректно
*/

type FooType = unknown;
type BarType = unknown;
type FooType = {
stringProp: String,
numberProp: Number,
barObject: BarType,
};

type BarType = {
stringsArrayProp: Array<string>,
numbersOrDatesArrayProp: Array<number | Date>,
functionProp(flag: boolean): void,
};

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Зачтено на 3 балла

export const fooObjects: FooType[] = [
{
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4 changes: 3 additions & 1 deletion src/task_2/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -70,7 +70,9 @@ const obj7: ThirdType = {

const array = [obj1, obj2, obj3, obj4, obj5, obj6, obj7];

function filter(array: Array<FirstType | SecondType | ThirdType>, type: string) {
function filter(array: Array<FirstType | SecondType | ThirdType>, type: string)
{
return array.filter((x): x is FirstType | SecondType | ThirdType => typeof x === type);
}

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Работать не будет, т.к. в рантайме у x будет тип Object => ни один объект не попадет результирующий массив

filter(array, 'FirstType');
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5 changes: 5 additions & 0 deletions src/task_3/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -8,5 +8,10 @@
function add(x: string, y: string): string;
function add(x: number, y: number): number;

function add(x: any, y: any): any
{
return x+y;
}

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Зачтено на 3 балла

add('20', '21'); //2021
add(20, 21); //41
12 changes: 12 additions & 0 deletions src/task_4/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -12,3 +12,15 @@ type FooType = {
a: number
b: string
};

/**
* type не поддерживает изменения и наследования, может обЪеденять в себе другие, позволяет задать псевдоним
* для любой разновидности типа
*/


/**
* interface можно изменять и расширять, при создании нового interface с уже использованным именем они сольются
* в один, interface представляет именнованный тип объекта
*/

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Зачтено на 3 балла

2 changes: 1 addition & 1 deletion src/task_5/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -73,7 +73,7 @@ export function logPerson(person: Person) {
console.log(` - ${person.name}, ${person.age}, ${additionalInformation}`);
}

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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Зачтено на 3 балла

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