jupyterlab/buildutils/template/.vscode/launch.json

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "attach",
      "name": "Attach to jest",
      // Usage:
      // Open the parent directory in VSCode
      // Run \`jlpm test:debug:watch\` in a terminal
      // Run this debugging task
      "port": 9229
    }
  ]
}