@atlaskit/tabs/dist/es2019/use-tab.js

Tabs are used to organize content by grouping similar information on the same page.

import { useContext } from 'react';
import { TabContext } from './internal/tab-context';
import { TabMotionContext } from './internal/tab-motion-context';

// TODO: Fill in the hook {description}.
/**
 * {description}.
 */
export default function useTab() {
  const tabData = useContext(TabContext);
  const tabMotion = useContext(TabMotionContext);
  if (tabData == null || typeof tabData === 'undefined') {
    throw Error('@atlaskit/tabs: A Tab must have a TabList parent.');
  }
  if (tabMotion === null) {
    return tabData;
  }
  const index = tabData['aria-posinset'] - 1;
  return {
    ...tabData,
    ...tabMotion.getTabMotionAttributes(index)
  };
}