Issue #3419763 by Tom Konda: Replace deprecated String.prototype.substr() with...

    } else {

      url = window.location;

    }

    const hash = url.hash.substr(1);

    const hash = url.hash.substring(1);

    if (hash) {

      const $target = $(`#${hash}`);

      $('body').trigger('formFragmentLinkClickOrHashChange', [$target]);

  // Redirect on hash change when the original hash has an associated CKEditor 5.

  function redirectTextareaFragmentToCKEditor5Instance() {

    const hash = window.location.hash.substr(1);

    const hash = window.location.hash.substring(1);

    const element = document.getElementById(hash);

    if (element) {

      const editorID = getElementId(element);

    const chars = ['#', '?', '&'];

    for (let i = 0; i < chars.length; i++) {

      if (href.includes(chars[i])) {

        href = href.substr(0, href.indexOf(chars[i]));

        href = href.substring(0, href.indexOf(chars[i]));

      }

    }

    return href;

      $(once('views-ajax', '#views-tabset a')).on('click', function () {

        const href = $(this).attr('href');

        // Cut of #views-tabset.

        const displayId = href.substr(11);

        const displayId = href.substring(11);

        const viewsPreviewId = document.querySelector(

          '#views-live-preview #preview-display-id',

        );

        this.target.each(function (i) {

          // Ensure that the maxlength is not exceeded by prepopulating the field.

          const maxlength = $(this).attr('maxlength') - suffix.length;

          this.value = transliterated.substr(0, maxlength) + suffix;

          this.value = transliterated.substring(0, maxlength) + suffix;

        });

      },