As you are going to be writing in TypeScript, you can use either plain JavaScript packages or JavaScript packages with the TypeScript typings. Npm contains packages in JavaScript as well as TypeScript. Npm is like NuGet but for JavaScript packages. If you want to make use of any dependencies, then you will use npm which is the ‘node package manager’. VS Code is an application that runs on electron which is a mixture of Chromium, Google’s open source version of Chrome and node.js. It holds true for your own existing JavaScript package as well as for a public one. Without the ability to add ‘Type Information’ to an existing package, it would be difficult to validate the code of any object from a package. TypeScript typings are the type information that the TypeScript compiler needs to identify JavaScript libraries correctly.

You could say that using JavaScript for larger projects is hard because of the dynamic nature of JavaScript types – the thing that makes it so powerful also holds it back by hiding bugs until runtime. Scaling up from a very simple small application is hard with JavaScript and safer with TypeScript. If you just have JavaScript, then you do not have any type checking or type definitions for 3rd party components. In short, TypeScript is safer than JavaScript. JavaScript does not support any ‘type checking’ or ‘type definitions’ for 3rd party components and hides bugs until runtime. It provides a safe environment for writing large applications as well as to scale up small applications written in JavaScript. TypeScript can be any valid JavaScript but if it is any TypeScript then it must be compiled to JavaScript, hence JavaScript is valid TypeScript, but TypeScript is not valid JavaScript. It checks for types, etc., when TypeScript is compiled rather than when the code is executed. It compiles to JavaScript so the output from the compile process is plain JavaScript.

VS Code extensions enable you to easily extend the VS Code development environment to meet whatever needs you have. The article begins with a high-level overview of each of the core components needed and walks through how to get a development environment set up, a template configured, and how to write some code to get started. VS Code is a cross platform lightweight development environment from Microsoft. In this article, you will learn how to create a Visual Studio Code (VS Code) extension using TypeScript. Writing VS Code Extensions with TypeScript - Simple Talk Skip to content

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