[英]React Native & Webpack: Confusing when ESLint detects errors
對於 React Native 項目,我使用的是react-native-webpack-server
、 babel
、 eslint
和webpack-hotloader
當ESLint
在我的 Javascript 代碼中檢測到錯誤時,iOS 模擬器仍然刷新應用程序並顯示ESLint
。 但是顯示由ESLint
報告的ESLint
,我有來自index.ios.bundle
的錯誤, index.ios.bundle
錯誤可能令人困惑且難以調試。
例如使用此代碼:
'use strict';
import React, {
StyleSheet,
Text,
View,
TouchableHighlight,
Component
} from 'react-native';
rger // This will cause an error.
export default class ContactsComponent extends Component {
render() {
return (
<View>
<Text>This is a simple application.</Text>
</View>
);
}
}
我收到了ESLint
報告的這個錯誤:
11:1 error "rger" is not defined // Pretty straightforward
這個錯誤報告給了模擬器(所以 React Native):
Invariant Violation: Application ContactsComponent has not been registered. This is either due to a require() error during initialization or failure to call AppRegistry.registerComponent.
這個錯誤信息並不簡單。
我想知道是否有更有效的使用ESLint
,也許是直接在模擬器中顯示錯誤?
這是我的webpack.config.js
:
var fs = require('fs');
var path = require('path');
var webpack = require('webpack');
var config = {
debug: true,
devtool: 'source-map',
entry: {
'index.ios': ['./javascript/ios.js'],
},
output: {
path: path.resolve(__dirname, 'build'),
filename: '[name].js',
},
module: {
loaders: [{
test: /\.js$/,
exclude: /node_modules/,
loaders: ["babel?stage=0", "eslint"]
}]
},
plugins: [],
};
// Hot loader
if (process.env.HOT) {
config.devtool = 'eval'; // Speed up incremental builds
config.entry['index.ios'].unshift('react-native-webpack-server/hot/entry');
config.entry['index.ios'].unshift('webpack/hot/only-dev-server');
config.entry['index.ios'].unshift('webpack-dev-server/client?http://localhost:8082');
config.output.publicPath = 'http://localhost:8082/';
config.plugins.unshift(new webpack.HotModuleReplacementPlugin());
config.module.loaders[0].query.plugins.push('react-transform');
config.module.loaders[0].query.extra = {
'react-transform': {
transforms: [{
transform: 'react-transform-hmr',
imports: ['react-native'],
locals: ['module']
}]
}
};
}
// Production config
if (process.env.NODE_ENV === 'production') {
config.plugins.push(new webpack.optimize.OccurrenceOrderPlugin());
config.plugins.push(new webpack.optimize.UglifyJsPlugin());
}
module.exports = config;
和.eslintrc
:
{
"parser": "babel-eslint",
"plugins": [
"react"
],
"ecmaFeatures": {
"jsx": true
},
"extends": "eslint:recommended",
"rules": {
"react/display-name": 1,
"react/forbid-prop-types": 1,
"react/jsx-boolean-value": 1,
"react/jsx-closing-bracket-location": 1,
"react/jsx-curly-spacing": 1,
"react/jsx-indent-props": 1,
"react/jsx-max-props-per-line": 1,
"react/jsx-no-duplicate-props": 1,
"react/jsx-no-literals": 1,
"react/jsx-no-undef": 1,
"react/jsx-quotes": 1,
"react/jsx-sort-prop-types": 1,
"react/jsx-sort-props": 1,
"react/jsx-uses-react": 1,
"react/jsx-uses-vars": 1,
"react/no-danger": 1,
"react/no-did-mount-set-state": 1,
"react/no-did-update-set-state": 1,
"react/no-direct-mutation-state": 1,
"react/no-multi-comp": 1,
"react/no-set-state": 1,
"react/no-unknown-property": 1,
"react/prop-types": 1,
"react/react-in-jsx-scope": 1,
"react/require-extension": 1,
"react/self-closing-comp": 1,
"react/sort-comp": 1,
"react/wrap-multilines": 1,
"strict": 0
}
}
有什么建議嗎?
我找到了一種在模擬器中直接顯示錯誤的方法。 我只是使用eslint-loader
包。
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