import a from './a' ; import b from './b' ; import c from './c' ; import d from './d' ; console . log ( a ) ; console . log ( b ) ; require . ensure ( [ './c' , './d' ] , function ( require ) { var cModule = < { default : typeof c ; } > require ( './c' ) ; var dModule = < { default : typeof d ; } > require ( './d' ) ; console . log ( cModule ) ; console . log ( dModule ) ; } ) ;