import Native from "../format/native.js" ; import FreeMind from "../format/freemind.js" ; import MMA from "../format/mma.js" ; import MUP from "../format/mup.js" ; import Plaintext from "../format/plaintext.js" ; let all = [ Native , FreeMind , MMA , MUP , Plaintext ] . map ( ctor => new ctor ( ) ) ; export function fill ( select ) { let nodes = all . map ( bui => bui . option ) ; select . append ( ... nodes ) ; }