js2019-11-06T16:00:00.000Z格式转换年月日格式

转换时间的方法
比如获取到的时间是这种格式：let = “2019-11-06T16:00:00.000Z”

formateDate(datetime) {
      // let  = "2019-11-06T16:00:00.000Z"
        function addDateZero(num) {
            return (num < 10 ? "0" + num : num);
        }
        let d = new Date(datetime);
        let formatdatetime = d.getFullYear() + '-' + addDateZero(d.getMonth() + 1) + '-' + addDateZero(d.getDate());
        return formatdatetime;
    },

如果有时分秒就替换这个

let formatdatetime = d.getFullYear() + '-' + addDateZero(d.getMonth() + 1) + '-' + addDateZero(d.getDate()) + ' ' + addDateZero(d.getHours()) + ':' + addDateZero(d.getMinutes()) + ':' + addDateZero(d.getSeconds());

要给后端传的时间

jcjssjDate: this.formateDate(this.jcjssjDate),
jckssjDate: this.formateDate(this.jckssjDate),

发送后的时间格式：

jcjssjDate: "2019-11-23"
jckssjDate: "2019-11-16"