Common.js

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

if ( mw.config.get( 'wgCanonicalSpecialPageName' ) === 'Watchlist' ) {
    document.body.classList.add( 'mw-rcfilters-ui-initialized' );
}

function copyToClip(str) {
  function listener(e) {
    e.clipboardData.setData("text/html", str);
    e.clipboardData.setData("text/plain", str);
    e.preventDefault();
  }
  document.addEventListener("copy", listener);
  document.execCommand("copy");
  document.removeEventListener("copy", listener);
};