如何在Javascript中获取当前格式的日期dd / mm / yyyy并将其附加到输入中

const monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];        let dateObj = new Date();        let month = monthNames[dateObj.getMonth()];        let day = String(dateObj.getDate()).padStart(2, '0');        let year = dateObj.getFullYear();        let output = month  + 'n'+ day  + ',' + year;        document.querySelector('.date').textContent = output;