Otherwise, we can only debug within the JavaScript file.

It is important to note that the JavaScript file name corresponds to what we have created and that the option SourceMaps is activated. We select node.js.Ī further JSON file is created in the. Again, Visual Studio Code does not know what exactly it should run. Therefore we use the second option: We press the key within Visual Studio Code to debug. The only bad thing is, we have no debugging comfort here. One way is to start from the terminal using node index.js, regardless of Visual Studio Code. There are different ways to run the application. One is the generated JavaScript file and the other is the SourceMap file which is required for debugging. Left below we can see a rotating character and in File Explorer we can see two new files for our TypeScript file. So we can close this file and call the build process again with + +. The pleasant thing about this template is that all relevant settings are already stored. We choose TypeScript - tsconfig.json here.Ī new directory is created with. So it will ask you, what exactly you want. Now Visual Studio Code does not know what exactly it should do. Alternatively, you can open the command line with and type Build. The key combination + + prompts Visual Studio Code to build the project. The TypeScript file was written, but a JavaScript file is needed to run it. That’s it! Start the TypeScript compiler with Visual Studio Code With the listen function, the current web server is activated for the defined port. To terminate the current stream, the end function is required. The simple write function was used to send a simple string value. We can use the response parameter to append data to the current stream. Here we get all client request information with the request parameter. When calling, the anonymous function is triggered and a streaming to the client is active. The first line is comparable to a using, import or include from other high-level languages.įrom line 3, a Web server is already being created. Then we access a Node.js build-in module called http. If there is no declaration file or a TypeScript code in the project, let is written as usual.

Thus, TypeScript knows that there must be a declaration for this module. The first line begins with a TypeScript-specific keyword import. In this case you need write the following compiler configuration: ). The IntelliSense support only works with an existing internet connection. So you just need to write the first curly braces and IntelliSense will autocomplete it with the shortcut +. Thanks to the JSON IntelliSense feature of Visual Studio Code, which automatically provides an autocomplete on the basis of the filename. It will be created as tsconfig.json in the root directory. TypeScript compiler configurationįor a proper Node.js support with TypeScript, a compiler configuration file is absolutely necessary. To install other packages like jQuery for example, you would have to call npm install -save-dev. The command npm install -save-dev will have it done. They will be installed with the node package manager (npm) since TypeScript 2. To ensure that Visual Studio Code can solve Node.js features within IntelliSense, the TypeScript declaration files for Node.js are required. You can open the integrated terminal in Visual Studio Code using the keyboard shortcut +. To include it, we just have to write npm init –y in the terminal. As project file the packages.json file is needed. Afterwards, we open the created folder in Visual Studio Code File | Open Folder. To create a new project, the only thing we need is a new folder in our file explorer.

Visual Studio Code - (runs on Windows, Mac and Linux).

Type npm install typescript –g in the terminal

Node.js - (runs on Windows, Mac and Linux).

The example in this article provides to setup the following: And at the end, we will also debug a small “Hello World” example. This blog post describes how easy it is to create a new Node.js project with TypeScript support. Visual Studio Code is a free code editor of Microsoft with an excellent TypeScript and Node.js development support. Visual Studio Code: Node.js with TypeScript and Debugging

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