src/promissory-arbiter.js
function isAncestorTopic (topic, node) {
    var nodeTopic = getTopic(node);

    return topic === nodeTopic
      || startsWith(topic, nodeTopic + '.')
      || nodeTopic === '';
  }
function isAncestorTopic (topic, node) {
    var nodeTopic = getTopic(node);

    return topic === nodeTopic
      || startsWith(topic, nodeTopic + '.')
      || nodeTopic === '';
  }
function isAncestorTopic ( topic , node ) { var nodeTopic = getTopic ( node ) ; return topic === nodeTopic || startsWith ( topic , nodeTopic + '.' ) || nodeTopic === '' ; }
Finds the Ancestor of the specified topic or undefined
Finds the Ancestor of the specified topic or undefined