Explains how to use Fetch api in Typescript. 

TypeScript: HTTP Requests with Fetch

Explains how to use Axios api in Typescript. 

TypeScript: HTTP Requests with Axios

Explains how to use typeof and const assertion Typescript.

Explains how to use instanceof, typeof and in, in Typescript.

Presents different functions to deal with Map in Typescript.

Explains different ways on how to copy Map in Typescript.

Explains how to use Generics in Arrow Functions in Typescript. 

Explains how to use an Enum in Typescript. 

Explains how to instantiate an Object in Typescript. 

Explains and resolve Error TS2339 with different solutions. 

Explains and resolve Error TS2454 with 2 different solutions. 

Explains the issues and a throughout solution for each. 

Explains and resolve Error TS2322 with four different solutions. 