Why would you NOT use TypeScript? 

Detect common JavaScript errors with TypeScript  

TypeScript for Beginners, Part 1: Getting Started
TypeScript for Beginners, Part 2: Basic Data Types
TypeScript for Beginners, Part 3: Interfaces
TypeScript for Beginners, Part 4: Classes

Exploring set(), get() and Object.defineProperty() in TypeScript 

Updated webpack, TypeScript 2.5 support, Bugfixes 

TypeScript 2.1: async/await for ES3/ES5 

Why You Shouldn’t Be Scared of TypeScript 

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Latest TypeScript Interview Questions for beginners