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入力した一年後の日付を別のフィールドに自動入力する

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やりたいこと:date_fieldに入力した値から一年マイナス1日の日付を別のdate_fieldに自動表示させる。
Ex applied_date columnに2021-01-01と入力したなら
expired_date columnに2022-12-31と自動表示させる。

qiita.js
$(document).ready(() => {
  var applied = document.getElementById("applied_date");
  applied.addEventListener("change", (event) => { 
    var appliedDateInput = new Date(event.target.value);
    appliedDateInput.setFullYear(appliedDateInput.getFullYear()+1);
    appliedDateInput.setDate(appliedDateInput.getDate() - 1);
    var expiredDateInput = document.getElementById("expired_date");
    expiredDateInput.value = appliedDateInput.toISOString().substring(0,10);
  })
})
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