JavaScript aktualisieren lokales Speicherarray

var yesArray = [];
localStorage.setItem('yesArray', JSON.stringify(yesArray));
yesArray = JSON.parse(localStorage.getItem('yesArray'));
yesArray.push('yes');
localStorage.setItem('yesArray', JSON.stringify(yesArray));
JSON.parse(localStorage.getItem('yesArray')); // Returns ["yes"]
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