react-native-markdown-renderer/lib/util/hasParents.js

Markdown renderer for react-native, with CommonMark spec support + adds syntax extensions & sugar (URL autolinking, typographer).

/**
 *
 * @param {Array} parents
 * @param {string} type
 * @return {boolean}
 */
export default function hasParents(parents, type) {
  return parents.findIndex(el => el.type === type) > -1;
}