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                'use strict'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                const path = require('path') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                const config = require('../config') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                const ExtractTextPlugin = require('extract-text-webpack-plugin') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                const packageConfig = require('../package.json') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exports.assetsPath = function (_path) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  const assetsSubDirectory = process.env.NODE_ENV === 'production'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    ? config.build.assetsSubDirectory  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    : config.dev.assetsSubDirectory  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  return path.posix.join(assetsSubDirectory, _path)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exports.cssLoaders = function (options) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  options = options || {} | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  const cssLoader = { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    loader: 'css-loader',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    options: { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      sourceMap: options.sourceMap  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  const postcssLoader = { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    loader: 'postcss-loader',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    options: { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      sourceMap: options.sourceMap  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  // generate loader string to be used with extract text plugin  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  function generateLoaders (loader, loaderOptions) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const loaders = options.usePostCSS ? [cssLoader, postcssLoader] : [cssLoader]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    if (loader) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      loaders.push({ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        loader: loader + '-loader',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        options: Object.assign({}, loaderOptions, { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                          sourceMap: options.sourceMap  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        })  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      })  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    // Extract CSS when that option is specified  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    // (which is the case during production build)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    if (options.extract) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      return ExtractTextPlugin.extract({ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        use: loaders,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        fallback: 'vue-style-loader'  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      })  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      return ['vue-style-loader'].concat(loaders)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  // https://vue-loader.vuejs.org/en/configurations/extract-css.html  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  return { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    css: generateLoaders(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    postcss: generateLoaders(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    less: generateLoaders('less'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    sass: generateLoaders('sass', { indentedSyntax: true }), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    scss: generateLoaders('sass'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    stylus: generateLoaders('stylus'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    styl: generateLoaders('stylus') | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                // Generate loaders for standalone style files (outside of .vue)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                exports.styleLoaders = function (options) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  const output = []  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  const loaders = exports.cssLoaders(options)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  for (const extension in loaders) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const loader = loaders[extension]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    output.push({ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      test: new RegExp('\\.' + extension + '$'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                      use: loader  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    })  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                  return output  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                exports.createNotifierCallback = () => { | 
            
            
                                                        
            
                                    
            
            
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                  const notifier = require('node-notifier') | 
            
            
                                                        
            
                                    
            
            
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                  return (severity, errors) => { | 
            
            
                                                        
            
                                    
            
            
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                    if (severity !== 'error') return  | 
            
                            
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                    const error = errors[0]  | 
            
            
                                                        
            
                                    
            
            
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                    const filename = error.file && error.file.split('!').pop() | 
            
            
                                                        
            
                                    
            
            
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                    notifier.notify({ | 
            
            
                                                        
            
                                    
            
            
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                      title: packageConfig.name,  | 
            
            
                                                        
            
                                    
            
            
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                      message: severity + ': ' + error.name,  | 
            
            
                                                        
            
                                    
            
            
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                      subtitle: filename || '',  | 
            
            
                                                        
            
                                    
            
            
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                      icon: path.join(__dirname, 'logo.png')  | 
            
            
                                                        
            
                                    
            
            
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                    })  | 
            
            
                                                        
            
                                    
            
            
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                  }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Consider adding curly braces around all statements when they are executed conditionally. This is optional if there is only one statement, but leaving them out can lead to unexpected behaviour if another statement is added later.
Consider:
If you or someone else later decides to put another statement in, only the first statement will be executed.
In this case the statement
b = 42will always be executed, while the logging statement will be executed conditionally.ensures that the proper code will be executed conditionally no matter how many statements are added or removed.