vscodeでWSLのnode.jsをデバッグ実行する

Visual Studio Code（vscode）はnode.jsのデバッグに対応していますが、Windows Subsystem for Linux（WSL）のnode.jsも利用できるようです。

debugging Node.js in the Linux subsystem on Windows:

If you want to run Node.js in the Linux subsystem on Windows (WSL), you can use the approach from above as well. However to make this even simpler, we've introduced a useWSL flag to automatically configure everything so that Node.js runs in the Linux subsystem and source is mapped to files in your workspace.

https://code.visualstudio.com/docs/nodejs/nodejs-debugging#_remote-debugging

以下の環境で試してみました。

Visual Studio Code 1.19.3
nvm 0.33.6
node 9.2.0
Ubuntu 16.04.3
Windows 10 Build 1709

vscodeで .vscode/launch.json を作成します。

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "node (WSL)",
      "useWSL": true,
      "program": "${workspaceFolder}/index.js"
    },
    {
      "type": "node",
      "request": "launch",
      "name": "node (macOS)",
      "program": "${workspaceFolder}/index.js"
    }
  ]
}