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* feat: exclude 메서드 구현 * test: exclude 메서드의 테스트코드 작성 * fix: 메서드 이름을 exclude -> excludeElements로 변경 * fix: 컴포넌트명 변경에 따른 폴더명 수정 * fix: excludeElements가 2개의 제네릭을 사용할 수 있도록 매개변수 타입 수정 * test: excludeElements 로직 수정에 의한 테스트 코드 수정 * docs: excludeElements 문서 작성
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# excludeElements | ||
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1번째 매개변수로 전달된 배열에서, 2번째 이후의 값을 제외하여 반환하는 유틸 함수입니다. | ||
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원시값의 경우 명확한 타입체크를 위해 `as const` 사용을 권장드립니다. | ||
원시값이 아닌 `object` 타입인 경우 `JSON.stringify`를 통해 동등성을 비교합니다. | ||
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<br /> | ||
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## Code | ||
[🔗 실제 구현 코드 확인](https://github.com/modern-agile-team/modern-kit/blob/main/packages/utils/src/array/excludeElements/index.ts) | ||
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## Interface | ||
```ts title="typescript" | ||
const excludeElements = <E, U extends E>( | ||
array: ReadonlyArray<E> | Array<E>, | ||
...args: ReadonlyArray<U> | Array<U> | ||
) => Array<E> | ||
``` | ||
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## Usage | ||
```ts title="typescript" | ||
import { excludeElements } from '@modern-kit/utils'; | ||
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const array = [1, 2, 3, 4]; | ||
const excluded = [3, 4] | ||
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excludeElements(array, ...excluded); // [1, 2] | ||
``` | ||
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```ts title="typescript" | ||
import { excludeElements } from '@modern-kit/utils'; | ||
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const array = ['a', 'b', 'c', 'd']; | ||
const excluded = ['a'] | ||
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excludeElements(array, ...excluded); // ['b', 'c', 'd'] | ||
``` | ||
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```ts title="typescript" | ||
import { excludeElements } from '@modern-kit/utils'; | ||
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const array = [[3, 'a'], [4, 'b']]; | ||
const excluded = [[3, 'a']] | ||
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excludeElements(array, ...excluded); // [4, 'b'] | ||
``` | ||
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```ts title="typescript" | ||
import { excludeElements } from '@modern-kit/utils'; | ||
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const array = [ | ||
{ name: 'kim', address: { city: 'Seoul' } }, | ||
{ name: 'lee', address: { city: 'NewYork' } }, | ||
]; | ||
const excluded = [{ name: 'kim', address: { city: 'Seoul' } }]; | ||
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excludeElements(array, ...excluded); // { name: 'lee', address: { city: 'NewYork' } } | ||
``` | ||
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## Caveats | ||
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- 2번째 이후의 매개변수의 형태는 `이터러블` 혹은 `리스트(1, 2, 3..)` 형태입니다. |
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packages/utils/src/array/excludeElements/excludeElements.spec.ts
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import { excludeElements } from '.'; | ||
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describe('excludeElements', () => { | ||
it('filter after second parameter values from first parameter.', () => { | ||
const array = [1, 2, 3, 4, 5, 6]; | ||
const excludedElements = [1, 3]; | ||
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expect(excludeElements(array, ...excludedElements)).toEqual([2, 4, 5, 6]); | ||
}); | ||
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it('should filter boolean.', () => { | ||
const array = [true, false, false, true]; | ||
const excludedElements = [true]; | ||
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expect(excludeElements(array, ...excludedElements)).toEqual([false, false]); | ||
}); | ||
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it('should filter string.', () => { | ||
const array = ['name', 'value', 'value', 'key']; | ||
const excludedElements = ['value']; | ||
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expect(excludeElements(array, ...excludedElements)).toEqual([ | ||
'name', | ||
'key', | ||
]); | ||
}); | ||
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it('should filter object.', () => { | ||
const excludePerson = { name: 'kim', address: { city: 'Seoul' } }; | ||
const notExcludePerson = { name: 'lee', address: { city: 'NewYork' } }; | ||
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const people = [excludePerson]; | ||
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expect(excludeElements(people, excludePerson)).toEqual([]); | ||
expect(excludeElements(people, notExcludePerson)).toEqual(people); | ||
}); | ||
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it('should filter tuple.', () => { | ||
const array = [[3, 'a']]; | ||
const excludedElements = [3, 'a']; | ||
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expect(excludeElements(array, excludedElements)).toEqual([]); | ||
}); | ||
}); |
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export const excludeElements = <E, U extends E>( | ||
array: ReadonlyArray<E> | Array<E>, | ||
...args: ReadonlyArray<U> | Array<U> | ||
): Array<E> => { | ||
const excludeSet = new Set(args.map((arg) => JSON.stringify(arg))); | ||
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return array.filter((element) => !excludeSet.has(JSON.stringify(element))); | ||
}; |
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export * from './countOccurrencesInArray'; | ||
export * from './excludeElements'; |