Vue_VSCode_settings.json

{
  "vetur.validation.template": false,
  "vetur.completion.scaffoldSnippetSources": {
    "workspace": "💼",
    "user": "🗒️",
    "vetur": "✌"
  },
  "eslint.validate": ["vue", "html", "javascript"],
  "prettier.disableLanguages": [],
  "editor.formatOnSave": true,
  "editor.codeActionsOnSave": {
    "source.fixAll.eslint": true
  },
  "[vue]": {
    "editor.defaultFormatter": "esbenp.prettier-vscode"
  }
}

還須先將 VSCode 上的
"prettier.disableLanguages": ["vue"] 改成 -> "prettier.disableLanguages": []

Ref: https://www.paultsai.com/vscode-prettier-vue/

幾個文件設定

.prettierrc

{
    "semi": false,
    "singleQuote": true
}