TypeScript

Clone Object by Value
https://pupli.net/2017/04/30/clone-object-by-value-in-typescript/

Declare
https://pupli.net/2017/06/18/typescript-declare/

How to use Promise in Typescript
https://pupli.net/2019/04/23/how-to-use-promise-in-typescript/

Typescript Optional Parameters
https://pupli.net/2019/06/17/typescript-optional-parameters/