![]() If running and debugging is not yet configured (no launch.json has been created), VS Code shows the Run start view. The Run and Debug view displays all information related to running and debugging and has a top bar with debugging commands and configuration settings. You can also use the keyboard shortcut ⇧⌘D (Windows, Linux Ctrl+Shift+D). To bring up the Run and Debug view, select the Run and Debug icon in the Activity Bar on the side of VS Code. Once you have a simple application set up, this page will take you through VS Code debugging features. You can follow the Node.js walkthrough to install Node.js and create a simple "Hello World" JavaScript application ( app.js). It is helpful to first create a sample Node.js application before reading about debugging. The following documentation is based on the built-in Node.js debugger, but most of the concepts and features are applicable to other debuggers as well. Select an extension tile above to read the description and reviews to decide which extension is best for you. Tip: The extensions shown above are dynamically queried. Configure IntelliSense for cross-compiling.In case of failure, you will see the following logs inside testlog.txt. Minimum = 82ms, Maximum = 160ms, Average = 117ms Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Īpproximate round trip times in milli-seconds: Using ErrorLevel to detect errors and log themĮrrorlevel returns 0 if the command executes successfully and 1 if it fails.ĭuring execution, you can see errors as well as logs: Looking at the above file the developer can fix the program and execute again. More help is available by typing NET HELPMSG 3506. The file testerrors.txt will display the error messages as shown below: Let us log the message and see what we get.Įxecute the following command in your command line:Ĭ:\>test.bat > testlog.txt 2> testerrors.txt Here is an example, consider the following test.bat file: Another easy way out is to log those messages in another file and view it step by step to understand what went wrong. It might get hard to debug the error just looking at a bunch of echo displayed on the command prompt. Logging the error messages to another file In the example below, the batch script is paused as the input value is mandatory and not provided. When the script is paused, the developer can fix the issue and restart the processing. offĪnother way is to pause the batch execution when there is an error. For example, if the input given is a negative number, less than 2, etc. Similarly, the echo command can be used in place when you think that the error can happen. The echo command is used to display the result and also if the input is not given. Here is a simple example that displays even numbers based on the input given. It will display the message in the command prompt and help you debug where things have gone wrong. Using echo commandĪ very simple debug option is to make use of echo command in your batch script wherever possible. Debugging a batch script becomes important when you are working on a big complex batch script.įollowing are the ways in which you can debug the batch file.
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