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TypeScript Blueprints by Ivo Gabe de Wolff

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Chapter 1. TypeScript 2.0 Fundamentals

In Chapters 2 through 5, we will learn a few frameworks to create (web) applications with TypeScript. First you need some basic knowledge of TypeScript 2.0. If you have used TypeScript previously, then you can skim over this chapter, or use it as a reference while reading the other chapters. If you have not used TypeScript yet, then this chapter will teach you the fundamentals of TypeScript.

What is TypeScript?

The TypeScript language looks like JavaScript; it is JavaScript with type annotations added to it. The TypeScript compiler has two main features: it is a transpiler and a type checker. A transpiler is a special form of compiler that outputs source code. In case of the TypeScript compiler, TypeScript ...

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