- #How to debug node js visual studio code how to#
- #How to debug node js visual studio code install#
- #How to debug node js visual studio code code#
Thereby, the currently active file in VS Code is executed. If you want to run all Mocha tests in a specific folder, you can use the following configuration. It lists all configurations and lets you add new configurations or edit existing ones. In the following, we will fill the configurations property. Initially, the empty launch.json file looks like this: Go to the Debug view (CTRL+Shift+D) and select “Add Configuration” in the “No Configurations” dropdown. vscode folder in your projects root level.
To debug your Mocha unit tests in Visual Studio Code, we first have to create a launch.json file in the. Mocha is a JavaScript test framework running on Node.js and in the browser.
#How to debug node js visual studio code how to#
The following write-up gives a short introduction on how to setup Mocha and how to easily run all unit tests or only a single one in Visual Studio Code. To allow debugging of the currently opened file in the editor, modify the launch.json file by adding a new configuration, Launch Current File, for debugging the current file.Ĭonfiguration can be switched in the visual studio code editor by selecting the appropriate configuration.Mocha is a testing library, created to be simple, extensible, and fast.
Setting up debugging in visual studio code With the watch option enabled, babel will automatically compile a file every time it is changed. In a terminal or console, run the following command to compile the src folder and to output the compiled code to the build folder. The -watch option enables babel to compile a file every time it is changed. The -source-maps option generates source maps that can be used by the visual studio debugger. The above script will compile all the code in the src folder to a compatible JavaScript version (that is, version < es6) and output the compiled files to a folder called build. Open the package.json file and modify the scripts object as follows.
#How to debug node js visual studio code install#
npm install -save-dev a file in the root folder of the application with the below json. npm install -save-dev install -save-dev install -save-dev to install all dependencies in one command, run the below command. Run the below commands to install babel as a development dependency. env file to store environment variables as follows.īabel is a JavaScript compiler that is mainly used to convert ECMAScript2015+ code into a backwards compatible version of JavaScript in current and older browsers or environments. In the root folder of the project, create a. The expected result that is to be displayed in the console is 4.Īdd a breakpoint to line 3 in the server.js file. The result of the calculator will be outputted to the console. When the application is executed, a new calculator will be initialized and the add method will be invoked with two numbers, 1 and 3. Open the project in visual studio code and create an src folder with the following files.Īs can be seen from the above files, a simple calculator is created that adds two numbers. This article will present the steps required to get a simple node.js project running using es6+ features with debugging enabled in visual studio code.īefore proceeding with this article, ensure that you have node.js and visual studio code installed.Ĭreate a new project folder and navigate to it using a console or terminal. Two most common tools used to make these initial steps much more simpler are