Learn What is Class in Typescript and how to define and use class in Typescript and why you should always use class to write your Typescript code
As a typescript developer you should learn & understand How to use Type Assertions and what is need of using type Assertions in TypeScript. This tutorial will provide you complete details on using type assertion with different example of using type assertions in typescript.
This tutorial provide details explanation with example on several different data types available in TypeScript.
Fundamental details on What is Variable Type and How Variable Types Work in TypeScript? and also specifically How to use Type Annotation TypeScript?