TypeScript fundamentals
Angular 2 and higher is built with features of ECMAScript 2015/2016 and TypeScript. The new ECMAScript standards target evergreen browsers and helps to write more powerful, clean, and concise code. You can also use these features in any other less modern browsers with Polyfills such as core-js (https://github.com/zloirock/core-js). But, why do we need to use TypeScript?
TypeScript (http://www.typescriptlang.org) is a typed language and a super set of JavaScript developed by Microsoft. One can say that TypeScript is an advanced JavaScript with optional static typing. TypeScript code is not processed by browsers, it has to be translated into JavaScript by means of a TypeScript compiler. This translation is called compilation ...
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