MediaWiki:Vector.js

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if ( $( '.ext-wpb-pagebanner' ).length ) {
  $( '#contentSub' ).insertBefore( '.ext-wpb-pagebanner' );
}

/* Testing https://phabricator.wikimedia.org/T297758 */
if ( mw.config.get('skin') === 'vector' && document.body.classList.contains('skin-vector-legacy') ) {
  console.log('Legacy works!')
}

if ( mw.config.get('skin') === 'vector' && !document.body.classList.contains('skin-vector-legacy') ) {
 console.log('Modern works!')
}
/* End testing https://phabricator.wikimedia.org/T297758 */