@react-ui-org/react-ui/src/components/Popover/_helpers/cleanPlacementStyle.js

React UI is a themeable UI library for React apps.

export default (placementStyle) => {
  const validProps = [
    'position',
    'inset',
    'inset-inline-start',
    'inset-inline-end',
    'inset-block-start',
    'inset-block-end',
    'top',
    'right',
    'bottom',
    'left',
    'translate',
    'transform-origin',
  ];

  return Object.fromEntries(
    Object.entries(placementStyle).filter(([prop]) => validProps.includes(prop)),
  );
};