配置eslint规范项目代码风格

/ eslint-disable no-alert, no-console /

alert('foo');
console.log('bar');

/ eslint-enable no-alert, no-console /

{
 root: true,// 直接在根目录读取配置文件，能提高eslint性能
 "env": {
  "node": true,// 允许使用nodejs相关的变量，下同
  "es6": true,
  "browser": true,
  "monjs": true
 },
 "extends": "standard", // 继承eslint-config-standard中的配置，可以在rules中覆盖
 "parser": "babel-eslint", // 为eslint制定parser,默认的Esprima只允许已纳入es标准的内容
 "plugins": "vue",// 使用eslint-plugin-vue，使eslint能对vue语法进行处理，相应rules见https://eslint.vuejs./rules/
 "rules": {
  "no-alert": 2,
  "indent": ["error", 4, {
   "SwitchCase": 1,
   "VariableDeclarator": 1,
   "outerIIFEBody": 1,
   "MemberExpression": 1,
   "FunctionDeclaration": { "parameters": 1, "body": 1 },
   "FunctionExpression": { "parameters": 1, "body": 1 },
   "CallExpression": { "arguments": 1 },
   "ArrayExpression": 1,
   "ObjectExpression": 1,
   "ImportDeclaration": 1,
   "flatTernaryExpressions": false,
   "ignoreComments": false
  }]
 }
}