Function getCommonSuffix

src/utils.js:259–277

(items)

 * @returns {string} common suffix
 */
const getCommonSuffix = (items) => {
  let [suffix] = items;

  for (let i = 1; i < items.length; i++) {
    const item = items[i];
    for (
      let itemIndex = item.length - 1, suffixIndex = suffix.length - 1;
      suffixIndex >= 0;
      itemIndex--, suffixIndex--
    ) {
      if (item[itemIndex] !== suffix[suffixIndex]) {
        suffix = suffix.slice(suffixIndex + 1);
        break;
      }
    }
  }

  return suffix;
};

/**
 * @param {Set<string>} itemsSet items set