feat: Added a new utility function typeUtil & fix: Fix bug in clearNullProperties utility function

[klmhyeonwoo]

Description

• 새로운 타입 체킹 유틸 함수(typeUtil)가 추가되었어요
• 개별 패키지 익스포트 방식을 추가했어요
  • 기존에는 아래와 같이 사용했는데, 조금 더 확장성을 고려했어요.

  import { typeUtil } from 'kr-corekit';
  const { isPlainObject} = typeUtil;
  
  import { isPlainObject } = 'kr-corekit';
  const checkType = isPlainObject({ a: 6 });

• clearNullProperties 유틸 함수의 일부 버그를 수정했어요
  • false인 경우 값을 그대로 두지 않고 보정 처리하는 버그
  • 배열 값이 존재하는 경우 객체로 반환하는 버그

[Copilot]

Pull Request Overview

This PR introduces a new type utility function isPlainObject and fixes bugs in the existing clearNullProperties function. The changes enhance the library's type checking capabilities and improve the reliability of object property clearing.

• Added typeUtil package with isPlainObject function for distinguishing plain objects from arrays and other object types
• Enhanced export strategy to support both namespace and individual function imports
• Fixed clearNullProperties to properly handle falsy values and use type checking for recursive processing

Reviewed Changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
package/typeUtil/isPlainObject/index.ts	New utility function to check if a value is a plain object
package/typeUtil/isPlainObject/index.test.ts	Comprehensive test suite for the isPlainObject function
package/typeUtil/index.ts	Export configuration for typeUtil package
package/objectUtil/clearNullProperties/index.ts	Bug fixes for proper null/undefined handling and array preservation
package/objectUtil/clearNullProperties/index.test.ts	Additional test cases covering the bug fixes
package/index.ts	Updated exports to include typeUtil with both namespace and individual exports
README.md	Documentation updates for the new typeUtil functionality

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[klmhyeonwoo]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	80.06%	233 / 291
🔵	Statements	80.06%	233 / 291
🔵	Functions	95.65%	22 / 23
🔵	Branches	93.2%	96 / 103

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
package/objectUtil/clearNullProperties/index.ts	100%	100%	100%	100%
package/typeUtil/isPlainObject/index.ts	100%	100%	100%	100%

Generated in workflow #71 for commit e257573 by the Vitest Coverage Report Action

[prgmr99]

고생하셨습니다~~

[prgmr99]

오.. 이것도 객체를 의미하는 줄 몰랐습니다..!! 👍