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Why this error appear?

package.json

 
 "name": "react-shopping",
 "version": "0.1.0",
 "private": true,
 "dependencies": 
 "@babel/core": "7.1.0",
 "@svgr/webpack": "2.4.1",
 "babel-core": "7.0.0-bridge.0",
 "babel-eslint": "9.0.0",
 "babel-jest": "23.6.0",
 "babel-loader": "8.0.4",
 "babel-plugin-named-asset-import": "^0.2.3",
 "babel-preset-react-app": "^6.1.0",
 "bfj": "6.1.1",
 "case-sensitive-paths-webpack-plugin": "2.1.2",
 "chalk": "2.4.1",
 "css-loader": "1.0.0",
 "dotenv": "6.0.0",
 "dotenv-expand": "4.2.0",
 "eslint": "5.6.0",
 "eslint-config-react-app": "^3.0.5",
 "eslint-loader": "2.1.1",
 "eslint-plugin-flowtype": "2.50.1",
 "eslint-plugin-import": "2.14.0",
 "eslint-plugin-jsx-a11y": "6.1.2",
 "eslint-plugin-react": "7.11.1",
 "file-loader": "2.0.0",
 "fork-ts-checker-webpack-plugin-alt": "0.4.14",
 "fs-extra": "7.0.0",
 "html-webpack-plugin": "4.0.0-alpha.2",
 "identity-obj-proxy": "3.0.0",
 "jest": "23.6.0",
 "jest-pnp-resolver": "1.0.1",
 "jest-resolve": "23.6.0",
 "mini-css-extract-plugin": "0.4.3",
 "optimize-css-assets-webpack-plugin": "5.0.1",
 "pnp-webpack-plugin": "1.1.0",
 "postcss-flexbugs-fixes": "4.1.0",
 "postcss-loader": "3.0.0",
 "postcss-preset-env": "6.0.6",
 "postcss-safe-parser": "4.0.1",
 "react": "^16.6.1",
 "react-app-polyfill": "^0.1.3",
 "react-dev-utils": "^6.1.1",
 "react-dom": "^16.6.1",
 "react-redux": "^5.1.1",
 "redux": "^4.0.1",
 "redux-logger": "^3.0.6",
 "redux-thunk": "^2.3.0",
 "resolve": "1.8.1",
 "sass-loader": "7.1.0",
 "style-loader": "0.23.0",
 "terser-webpack-plugin": "1.1.0",
 "url-loader": "1.1.1",
 "webpack": "4.19.1",
 "webpack-dev-server": "3.1.9",
 "webpack-manifest-plugin": "2.0.4",
 "workbox-webpack-plugin": "3.6.3"
 ,
 "scripts": 
 "start": "node scripts/start.js",
 "build": "node scripts/build.js",
 "test": "node scripts/test.js"
 ,
 "eslintConfig": 
 "extends": "react-app"
 ,
 "browserslist": [
 ">0.2%",
 "not dead",
 "not ie <= 11",
 "not op_mini all"
 ],
 "jest": jsx,
 "babel": 
 "presets": [
 "react-app"
 ]
 

store.js

import createStore from 'redux';

function todos(state = , action) 
 switch (action.type) 
 case 'ADD_TODO':
 return state.concat([action.text]);
 default:
 return state;
 


const store = createStore(todos, ['Use Redux']);
​
store.dispatch(
 type: 'ADD_TODO',
 text: 'Read the docs'
);
​
console.log(store.getState());

App.js

import React, Component from 'react';
import './store';

class App extends Component 
 render() 
 return (
 <div className="App">
 <h1>asdas</h1>
 </div>
 );
 


export default App;

Seems to me like a lint bug. When I removed two blank lines, I didn't get any errors:

import createStore from 'redux';

function todos(state = , action) 
 switch (action.type) 
 case 'ADD_TODO':
 return state.concat([action.text]);
 default:
 return state;
 


const store = createStore(todos, ['Use Redux']);
store.dispatch(
 type: 'ADD_TODO',
 text: 'Read the docs'
);
console.log(store.getState());