currentPage.js
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currentPage.js
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	/* global $ */
	const
	Page = require( './Page' );

	let page;

	/**
	* Constructs an incomplete Page model singleton representing the currently loaded page.
	*
	* Because this depends on the presence of certain DOM elements, it
	* should only be called after the DOMContentLoaded event.
	*
	* @ignore
	* @return {Page}
	*/
	function loadCurrentPage() {
	if ( page ) {
	return page;
	}

	const permissions = [].concat( mw.config.get( 'wgRestrictionEdit', [] ) ),
	relevantTitle = mw.Title.newFromText( mw.config.get( 'wgRelevantPageName' ) ),
	title = mw.Title.newFromText( mw.config.get( 'wgPageName' ) );

	if ( permissions.length === 0 ) {
	permissions.push( '*' );
	}

	page = new Page( {
	title: title.getPrefixedText(),
	titleObj: title,
	relevantTitle: relevantTitle.getPrefixedText(),
	protection: {
	edit: permissions
	},
	revId: mw.config.get( 'wgRevisionId' ),
	isMainPage: mw.config.get( 'wgIsMainPage' ),
	isWatched: $( '#ca-watch' ).hasClass( 'watched' ),
	isMissing: mw.config.get( 'wgArticleId' ) === 0,
	id: mw.config.get( 'wgArticleId' ),
	namespaceNumber: mw.config.get( 'wgNamespaceNumber' )
	} );

	return page;
	}

	module.exports = loadCurrentPage;