launch.json
```
{
// use IntelliSense understanding of the relevant property.
// hover to see the existing property description.
// For more information, please visit: https://go.microsoft.com/fwlink/?linkid=830387
"version": "0.2.0",
"configurations": [
{
"type": "node",
"request": "launch",
"name":"launch webpack-dev-server",
"program": "${workspaceFolder}/node_modules/webpack-dev-server/bin/webpack-dev-server.js",
"args": ["--progress", "--inline", "--config", "build/webpack.dev.conf.js"]
},
{
"type": "node",
"request": "launch",
"name":"launch webpack",
"program": "${workspaceFolder}/node_modules/webpack/bin/webpack.js",
"args": ["--progress", "--config", "build/webpack.prod.conf.js"]
}
]
}
```