Ausgangsfeld:
var feld = ["rot", "grün", "blau", "türkis", "violett"];
feld.join(" # ") =
feld.pop(); => feld =
feld.push("magenta"); => feld =
feld.shift(); => feld =
feld.unshift("magenta"); => feld =
feld.splice(3,1,"magenta","orange"); => feld =
feld.concat(["magenta","orange"]) =
feld.slice(2,4) =