JS获取自定义时间格式(补0)

1.获取自定义时间格式(携补0操作)

let year = new Date().getFullYear();
let month = new Date().getMonth() + 1 < 10 ? "0" + (new Date().getMonth() + 1) : new Date().getMonth() + 1;
let date = new Date().getDate() < 10 ? "0" + new Date().getDate() : new Date().getDate();
let hh = new Date().getHours() < 10 ? "0" + new Date().getHours() : new Date().getHours();
let mm = new Date().getMinutes() < 10 ? "0" + new Date().getMinutes() : new Date().getMinutes() + 1;
let ss = new Date().getSeconds() < 10 ? "0" + new Date().getSeconds() : new Date().getSeconds();
// this.nowDate = year + ":" + month + ":" + date + "";  // 年月日
// this.nowTime = hh + ":" + mm ;  // 时分
let_time = year + "-" + month + "-" + date + " " + hh + ":" + mm;
            let newTime=year + ":" + month + ":" + date + ""+hh + ":" + mm;