js一些时间工具类

function formatNum(num) {
            let res = Number(num);
            return res < 10 ? '0' + res : res;
        }
        function getToday() {
            let date = new Date();
            let y = date.getFullYear();
            let m = date.getMonth();
            let d = date.getDate();
            let hour = date.getHours();
             let minutes = new Date().getMinutes();
             let seconds = new Date().getSeconds();
  
             date =y + '-' + this.formatNum(m + 1) + '-' + this.formatNum(d) + ' ' +this.formatNum(hour)+ ':' +this.formatNum(minutes)+":"+this.formatNum(seconds)
   
            return date;
        }