Keystone + React： 'import'と 'export'は 'sourceType：module'としか表示されない

Question

プロジェクトの依存関係を更新した後、エラーに直面しました。 Browserifyは、ES6で書かれたJSコードの解析に問題があります。 BrowserifyはES5を期待しているようだ。

ここではsourceType: moduleが問題と思われる理由はわかりません。

出典：

var babelify = require('babelify'); 
var browserify = require('browserify-middleware'); 
var keystone = require('keystone'); 
var importRoutes = keystone.importer(__dirname); 

// Setup Route Bindings 
exports = module.exports = function(app) { 

    app.use('/js', browserify('./client/scripts', { 
     transform: [babelify.configure({ 
      extensions: ['es6'], 
      plugins: ['object-assign'] 
     })] 
    })); 

}; 

上記のコードからbabelifyを省略したときに同じことが、起こる：

var browserify = require('browserify-middleware'); 
var keystone = require('keystone'); 
var importRoutes = keystone.importer(__dirname); 

// Setup Route Bindings 
exports = module.exports = function(app) { 

    app.use('/js', browserify('./client/scripts')); 

}; 

Serverコンソール：

GET /js/Application.js 500 61.176 ms 
Error thrown for request: /js/Application.js 
Error: Parsing file /home/user/project/client/scripts/Application.js: 'import' and 'export' may appear only with 'sourceType: module' (1:0) 
    at Deps.parseDeps (/home/user/project/node_modules/module-deps/index.js:454:28) 
    at fromSource (/home/user/project/node_modules/module-deps/index.js:391:44) 
    at /home/user/project/node_modules/module-deps/index.js:385:17 
    at ConcatStream.<anonymous> (/home/user/project/node_modules/concat-stream/index.js:36:43) 
    at emitNone (events.js:91:20) 
    at ConcatStream.emit (events.js:185:7) 
    at finishMaybe (/home/user/project/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_writable.js:475:14) 
    at endWritable (/home/user/project/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_writable.js:485:3) 
    at ConcatStream.Writable.end (/home/user/project/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_writable.js:455:41) 
    at DuplexWrapper.onend (/home/user/project/node_modules/readable-stream/lib/_stream_readable.js:504:10) 
    at DuplexWrapper.g (events.js:291:16) 
    at emitNone (events.js:91:20) 
    at DuplexWrapper.emit (events.js:185:7) 
    at endReadableNT (/home/user/project/node_modules/readable-stream/lib/_stream_readable.js:926:12) 
    at _combinedTickCallback (internal/process/next_tick.js:74:11) 
    at process._tickCallback (internal/process/next_tick.js:98:9) 

Answer 1

問題はでちょうど間違った値としましたextensions: ['es6']には、実際のエクステンションJSファイルのextensions: ['.js']。

作業コード：

var babelify = require('babelify'); 
var browserify = require('browserify-middleware'); 
var keystone = require('keystone'); 
var importRoutes = keystone.importer(__dirname); 

// Setup Route Bindings 
exports = module.exports = function(app) { 

    app.use('/js', browserify('./client/scripts', { 
     transform: [babelify.configure({ 
      extensions: ['.js'], 
      plugins: ['object-assign'] 
     })] 
    })); 

};