- #Visual studio code javascript how to debug single lines how to
- #Visual studio code javascript how to debug single lines install
In this example, the QEWDjs server has a poolSize of 1, this means you have a single master process and one worker process. I will show here how this works with a QEWDjs back-end server as I used in my React example part 2. We can now easily define a multi-target debugging configuration and debug seamlessly as you do with a single-threaded server instance. The cluster module fixes this for you.īecause you want to debug these more complex situations where your Node.js application server is running a master process and multiple child/worker processes, we will use the technique above to run each process on it's own inspect port. Modify the "program" property to the filename you want to launch and debug ("program": "$) Īs each child process has it's own debug port, you'll no longer get "Unable to open devtools socket: address already in use" errors when forking child processes with debugging options.įYI, if you use the Node.js cluster module in your applications, each forked worker will get it's inspectPort incremented automatically. You'll see a "launch.json" file is created and select "Node.js: launch program": You'll notice we need to define a debug configuration first (at the top, click on "No configurations" and select "Add configuration". We will start with basic debugging using a very small test.js file and go to the debug view:
#Visual studio code javascript how to debug single lines install
When you are developing applications using an IDE like Visual Studio Code, you can very easily debug your Node.js process:įirst, download the free Visual Studio Code and install it on your development machine. Because of the asynchrnous nature, a standard Node.js application server works single-threaded by default. It’s awesome that with Vue.js you are able to use two ways for your debugging one to inspect the frontend page itself Html, Css and so on and one for the logic in your Javascript code of your application.One of the most important features during application development is the ability to debug your code easily. In my case I first do an authentication at Keycloak and then the content will be loaded from a microservice. Step 5: Change to the debug view and start the debug configuration “vuejs: chrome” ¶Īs you see in the gif below this starts a controlled Chrome browser instance and invokes the configured URL Step 6: Now start your Vue.js application and watch the stop at your debug point ¶ The image below shows the file where I used it in the example source code.
#Visual studio code javascript how to debug single lines how to
This blog post is a short cheat sheet, how to setup Vue.js debugging in Visual Studio Code, when you run the application in a Chrome Browser.