MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
mw.loader.using('mediawiki.util').then(function () {
  const title = document.querySelector('.mw-page-title-main');
  if (!title) return;

  // Text des Titels holen
  const text = title.textContent;
  const index = text.indexOf(':');

  // Wenn kein Doppelpunkt vorhanden, nichts tun
  if (index === -1) return;

  // Linken und rechten Teil trennen
  const left = text.slice(0, index + 1).trim();
  const right = text.slice(index + 1).trim();

  // Durch <br> ersetzen
  title.innerHTML = `${left}<br>${right}`;
});