author CaMnter
  import { isFunction } from "../utils/utils" ; param $ export function extractBodyContent ( $ ? ) { if ( ! ( $ && $ . html && isFunction ( $ . html ) ) ) { return '' ; } const body = $ ( 'body' ) ; return body && body . children && isFunction ( body . children ) ? $ . html ( body . children ( ) , { xmlMode : true , lowerCaseTags : true , recognizeSelfClosing : true } ) : '' ; }