![]() If you don't already have NPM and/or Node installed (you get NPM when you install Node), now is a great time to do so as it's a requirement for the next steps (and by association a requirement to use TypeScript). The second way, and the way we'll focus on, is through NPM (Node Package Manager). This is not the route I'll be covering today since I mainly use Visual Studio Code for all of my needs. The 2015, 2017, and I believe 2019 versions come with TypeScript installed already. The first is through Visual Studio (not to be confused with Visual Studio Code) which is an IDE. There are two main ways to install TypeScript. So, now we're ready to get started with TypeScript and start making use of its awesome features. ![]() TypeScript is the default in Angular projects and I have an article in the works about getting started with it.Īlso, this article assumes you have a basic understanding of JavaScript programming. Reading that article isn't required but it will give you a great understanding of the data types and syntax for TypeScript.īefore we start, it's important to note that TypeScript can be used in conjunction with a framework/library but it can also be used independent of a framework/library. If you'd like an overview of the data types you will find it helpful to read my previous article. And that's just a sampling of everything it offers. ![]() Then it throws errors if the returned data is not the type we expected to get back, or if a function call has too few or too many arguments. It allows us to type cast when declaring variables which means we explicitly set the type of data we expect back. TypeScript is one of the current hot topics in web development, and for good reasons. ![]()
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