출처:
https://www.typescriptlang.org/ko/docs/handbook/2/generics.html
https://blog.naver.com/altmshfkgudtjr/222222474809
https://blog.naver.com/jeromwolf7/222888063825
https://hyunseob.github.io/2017/01/14/typescript-generic/
(영문 해석)
Generics provides type safety without compromising the performance, or productivity. TypeScript uses generics with the type variable which denotes types. The type of generic functions is just like non-generic functions, with the type parameters listed first, similarly to function declarations.
Source:
https://www.typescriptlang.org/docs/handbook/2/generics.html
https://www.w3schools.com/typescript/typescript_basic_generics.php
https://www.javatpoint.com/typescript-generics