NODE.JS VISUAL STUDIO CODE TUTORIAL HOW TO
NODE.JS VISUAL STUDIO CODE TUTORIAL SOFTWARE
NODE.JS VISUAL STUDIO CODE TUTORIAL DOWNLOAD

You are not restricted from doing so on variable declarations, expressions, comments, and blank lines.Ĭreate a breakpoint by clicking the gutter to the left of the line numbers in the editor. You can create breakpoints in Visual Studio Code almost anywhere except function declaration statements. Select the relevant entry to start the debugging session.īreakpoints allow you to pause the code execution on a specific line to inspect it.

There may be several entries, but it should be easy enough to select the one you are interested in. This opens a menu that lists each individual Node.js process running on your machine. To open the process picker, type Ctrl+Shift+P and find the Debug: Attach to Node Process command: Or, if you want the debugger to attach before the program starts running, add: $ node -inspect-brk src/server.jsĪfter executing either of the above commands, you can open a process picker within Visual Studio Code, which lists all the processes that are available to the Node.js debugger. Start the program with the following command: $ node -inspect src/server.js Attach an External Node.js processĪnother option to begin a debugging session is attaching to an external Node.js process. Once you’ve finished setting up the project configuration, select and execute through the Configuration dropdown menu. Read the documentation to find out which settings are relevant to your project. There are many options that can be set on each configuration, such as the arguments to pass to the program, environment variables, and pre-debugging tasks. The name of the configuration is how it will be identified in the Configurations menu the program that will run is specified in the program field. vscode folder at the root of the project.Ĭreate the configuration file by clicking the create a launch.json file link in the RUN AND DEBUG: RUN view.Īfter selecting the environment for your project, the launch.json file should appear in the editor with the following contents: //. This configuration file is saved as launch.json in the. You also can create a launch configuration file for the project to configure and save debugging setup details that are infinitely reusable by anyone working on the project. On the left-hand side of the editor, there are five panes titled VARIABLES, WATCH, CALL STACK, LOADED SCRIPTS, and BREAKPOINTS. You can see the output of your project in the DEBUG CONSOLE, and the debug toolbar appears at the top of the screen to step through the code, pause the script, or end the session. The Node.js (legacy) option refers to the old JavaScript debugger, which is still available but not recommended.Īfter selecting an environment, the project launches and the debugger attaches to the process. The Visual Studio Code debugger will try to auto-detect the debug environment for your project, but if this fails, you will be prompted to select the appropriate environment in this case, select Node.js. The easiest way to start a debugging session in Visual Studio Code is to open a file in the editor, click the Run View icon in the Activity Bar (or press Ctrl+Shift+D on your keyboard), followed by the Run and Debug button at the top left corner of the application. Start a debugging session in Visual Studio Code The instructions to set it up are in the project’s README file.

NODE.JS VISUAL STUDIO CODE TUTORIAL DOWNLOAD

You also need a Node.js project you can use your own or download this sample URL shortener application. This tutorial uses v16.2.0 and 1.56.2, respectively. Setting up a project for Node.js debugging is not particularly difficult, and this tutorial will help you get it right on the first try! Prerequisitesīefore beginning, ensure the most recent versions of both Node.js and Visual Studio Code are installed. You can also evaluate expressions in the editor and step through the code to drill into the problematic parts. When beginning a debugging session, you must inspect the call stack and any scoped variables in their current state. Its built-in debugger can debug any application that targets the Node.js runtime, even if the source code for the application is a language that transpiles to JavaScript, such as TypeScript. The Visual Studio Code editor has all the tools to debug Node.js applications effectively.

NODE.JS VISUAL STUDIO CODE TUTORIAL HOW TO

How to debug Node.js apps in Visual Studio Code I'm currently working on my own products and teaching programming via my website freshman.tech.

NODE.JS VISUAL STUDIO CODE TUTORIAL SOFTWARE

Ayooluwa Isaiah Follow I'm a software developer from Nigeria with a keen interest in web technologies, security, and performance.

Node.js visual studio code tutorial