JS时间格式转换实战：标准格式、时间戳与年月日时分秒互转

let time = new Date()
console.log(time)//Thu Jan 27 2022 10:36:59 GMT+0800 (中国标准时间)

this.formDate(new Date(1643126400), "yyyy-MM-DD HH:mm:ss")

let curDate = Date.parse(new Date('2022-01-27 00:00:00'))

this.formDate(this.datetime, "yyyy-MM-DD HH:mm:ss")

formDate(data, format) {
      // console.log("data,time");
      let time = {
        "M+": data.getMonth() + 1,
        "D+": data.getDate(),
        "H+": data.getHours(),
        "m+": data.getMinutes(),
        "s+": data.getSeconds(),
      };
      if (/(y+)/i.test(format)) {
        format = format.replace(
          RegExp.$1,
          (data.getFullYear() + "").substr(4 - RegExp.$1.length)
        );
      }
      for (let k in time) {
        if (new RegExp("(" + k + ")").test(format)) {
          format = format.replace(
            RegExp.$1,
            RegExp.$1.length === 1
              ? time[k]
              : ("00" + time[k]).substr(("" + time[k]).length)
          );
        }
      }
      return format;
    }