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> [Udemy : The Complete Developer's Guide](https://www.udemy.com/course/nestjs-the-complete-developers-guide/) 학습한 자료
## Section 2 : The Basics of Nest
```json
"dependencies": {
"@nestjs…
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[Dependency inversion principle](https://en.wikipedia.org/wiki/Dependency_inversion_principle) states that implementations should depend on abstractions (interfaces) instead of on implementations to a…
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- [x] what is dart lang
- [x] history
- [x] setup
- [x] ide
- [x] dartpad
- [x] basic start with print
- [x] How to declare variables
- [x] String , int, double type
- [x] Print
- [x] Sample…
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title :: Clean Architecture with Flutter
sub_title :: 透過 flutter 實作 clean architecture 架構
cover_image ::
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### 筆記續
最近不管實習、專題競賽等等都有許多flutter 專案開發到經驗，但每次隨著專案範圍的擴大，頁面之間所牽涉到的邏輯、交互互動、資料庫連結等也隨之複雜…
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1) "Quote" of bad code:
```python
class Boolean(Field):
default_error_messages = {
'invalid': 'Not a valid boolean.'
}
def __init__(self, **kwargs):
kwargs.setdefa…
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// 김영한님 인프런 강의
// 작성 중 ... 책 오브젝트 보고 좀더 정리하자
## 객체 지향 프로그래밍 특징
추상화 / 캡슐화 / 상속 / **다형성**
> 위 네 가지 특징을 통해 **프로그램을 유연하고 변경이 용이하게** 만들어 준다.
Q) 추상화 되지 않는다면..?
특정 구현체의 내부 구현에 강하게 의존되어서 다른 구현체로 …
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For this important LG we don't provide adequate references.
- abstraction:
- modularization: Parnas?
- encapsulation
- separation of concerns
- open closed
- dependency inversion
- high cohe…
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* [InversifyJS](https://github.com/inversify/InversifyJS) 是 Theia/VSCode 的基础，而且有丰富的[生态](https://github.com/inversify/InversifyJS/blob/master/wiki/ecosystem.md)
* 了解 SOLID / DIP / IoC / DI / IoC 容器的概念…
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PR #1243 introduced proxy support via environment variables, specifically `process.env`. See https://github.com/grpc/grpc-node/blob/%40grpc/grpc-js%400.7.0/packages/grpc-js/src/http_proxy.ts#L45-L56
…