[Aetae]

if (confirm("удалить #" + id + "?"))
{
$("#btable").html("");
delete this.DATA[id];
this.IDS.splice( $.inArray(id, this.IDS), 1 );
this.reCalc();
this.renderBasketTable();
localStorage.setItem(this.cardID, JSON.stringify(this.DATA));
localStorage.setItem(this.cardID + "_ids", JSON.stringify(this.IDS));
}

=>

$("#btable").html("");
delete this.DATA[id];
this.IDS.splice( $.inArray(id, this.IDS), 1 );
this.reCalc();
this.renderBasketTable();
localStorage.setItem(this.cardID, JSON.stringify(this.DATA));
localStorage.setItem(this.cardID + "_ids", JSON.stringify(this.IDS));