MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
$( function () {
	var $tagline = $( '#site-tagline' );
	if ( !$tagline.length ) {
		return;
	}
	mw.loader.using( 'mediawiki.api' ).then( function () {
		return new mw.Api().get( {
			action: 'parse',
			page: 'Template:Taglines',
			prop: 'wikitext',
			formatversion: 2
		} );
	} ).then( function ( data ) {
		var lines = data.parse.wikitext
			.split( '\n' )
			.filter( function ( l ) { return l.charAt( 0 ) === '*'; } )
			.map( function ( l ) { return l.replace( /^\*+\s*/, '' ).trim(); } )
			.filter( Boolean );
		if ( lines.length ) {
			$tagline.text( lines[ Math.floor( Math.random() * lines.length ) ] );
		}
	} );
} );