import QRCodeReader from './../core/qrcode/QRCodeReader' ; import VideoInputDevice from './VideoInputDevice' ; import BrowserCodeReader from './BrowserCodeReader' ; class extends BrowserCodeReader class BrowserQRCodeReader extends BrowserCodeReader { param { number } timeBetweenScansMillis memberOf public constructor ( timeBetweenScansMillis = 500 ) { super ( new QRCodeReader ( ) , timeBetweenScansMillis ) ; } } export { VideoInputDevice , BrowserQRCodeReader } ;