Parsing (decoded) fragment params like query string params

fragmentParser.js

/**
 * If you're working with URL encoded fragments you should probably use URLSearchParams(...) instead of this
 * solution. Read more: https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams
 */
const { hash } = location;
const params = new Map(hash.slice(1, hash.length).split('&').filter(elem => elem).map(elem => 
  elem.split('=').map(e => decodeURIComponent(e))
));

// example:
// params.get('email');