MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */

function getRandomValue(array) {
  const randomIndex = Math.floor(Math.random() * array.length);
  return array[randomIndex];
};

const randomSelectionElements = document.querySelectorAll('.random-selection');
randomSelectionElements.forEach(elem => {
  const choices = elem.innerHTML;
  const choicesArray = choices.split(';');
  const chosen = getRandomValue(choicesArray);
  elem.innerText = chosen;
  elem.style.display = '';
});