VS Code launch config for react.js . source: https://stackoverflow.com/a/39607924

launch.json

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Launch via NPM",
      "type": "node",
      "request": "launch",
      "cwd": "${workspaceRoot}/src",
      "runtimeExecutable": "npm",
      "runtimeArgs": [
        "run-script", "start"
      ],
      "port": 3000
    }
  ]
}