依次点击：文件File-首选项Preferences-设置Settings，选择ESlint，点Edit in settings.json

将里面的内容替换为下图代码：

{
    "editor.formatOnSave": true,
    "javascript.format.insertSpaceBeforeFunctionParenthesis": true,
    "eslint.run": "onSave", // 点击保存自动修复
    "eslint.options": {
        "extensions": [
            ".js",
            ".vue"
        ]
    },
    "editor.codeActionsOnSave": {
        "source.fixAll.eslint": true 
    },
    "eslint.codeAction.showDocumentation": {

        "enable": true
    },
}

原文链接：https://my.oschina.net/jjyuangu/blog/2998993