* https://wiki.selfhtml.org/wiki/JavaScript/Objekte/String und https://wiki.selfhtml.org/wiki/JavaScript/Objekte/String/template-literal
  * https://developer.mozilla.org/de/docs/Web/JavaScript/Guide/Grammatik_und_Typen#String_Literale und https://developer.mozilla.org/de/docs/Web/JavaScript/Reference/Global_Objects/String
  * http://www.w3schools.com/js/js_strings.asp