@dnb/eufemia/shared/helpers/getClosest.js

DNB Eufemia Design System UI Library

import { warn } from "../helpers.js";
export const getClosestParent = (selector, element, excludeSelf = false) => {
  try {
    const tagName = /[A-Z]/.test(selector) ? selector : null;
    const className = tagName ? null : selector.replace(/^\./, '');
    const contains = element => {
      if (!element) {
        return null;
      }
      if (tagName) {
        return element?.tagName === tagName;
      }
      return element?.classList.contains(className);
    };
    if (excludeSelf) {
      element = element?.parentElement;
    }
    while (element && !contains(element)) {
      element = element?.parentElement;
    }
  } catch (e) {
    warn('getClosest: Failed to traverse DOM tree:', e);
  }
  return element;
};
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