handle anchor hash linking in AngularJS

anchor.js

/**
 * @param String content Html
 * @param String state State url -> $state.$current.url
 */
const bindAnchor = (content, state) => {
  return content
    .replace(/href="#\w+"/g, match => {
      const url = match.split('#');
      return `${url[0]}#${state}#${url[1]}`;
    });
};