LWC
HTML
<lightning-input label="日付" type="date" data-id="ResDate" required
value={resDate}></lightning-input>
JS
connectedCallback(){
var today = new Date();
this.resDate = today.toISOString();
// this.date=today.toISOString();
// console.log(today.toISOString())
// var last=new Date(new Date().getFullYear(), 11, 32);
// this.date111.value=today;
}
日付を設定した