@base-ui-components/react/esm/utils/styleHookMapping.js

Base UI is a library of headless ('unstyled') React components and low-level hooks. You gain complete control over your app's CSS and accessibility features.

const STARTING_HOOK = {
  'data-starting-style': ''
};
const ENDING_HOOK = {
  'data-ending-style': ''
};
export const transitionStatusMapping = {
  transitionStatus(value) {
    if (value === 'starting') {
      return STARTING_HOOK;
    }
    if (value === 'ending') {
      return ENDING_HOOK;
    }
    return null;
  }
};