日期时间过滤

自定义格式

filters: {
    formatDate: function(val, fmt) {
      let value = parseInt(val);
      if (!value) return "几天前";
      let getDate = new Date(value * 1000);
      let o = {
        "M+": getDate.getMonth() + 1,
        "d+": getDate.getDate(),
        "h+": getDate.getHours(),
        "m+": getDate.getMinutes(),
        "s+": getDate.getSeconds(),
        "q+": Math.floor((getDate.getMonth() + 3) / 3),
        S: getDate.getMilliseconds()
      };
      if (/(y+)/.test(fmt)) {
        fmt = fmt.replace(
          RegExp.$1,
          (getDate.getFullYear() + "").substr(4 - RegExp.$1.length)
        );
      }
      for (let k in o) {
        if (new RegExp("(" + k + ")").test(fmt)) {
          fmt = fmt.replace(
            RegExp.$1,
            RegExp.$1.length === 1
              ? o[k]
              : ("00" + o[k]).substr(("" + o[k]).length)
          );
        }
      }
      return fmt;
    }
  }

评论相关时间过滤

/**
 * 转换时间
 * 24小时内的，显示为x小时前；
 * 超过24小时的，显示为x天前；
 * 超过一周的，显示月日；
 * 今年以前的，显示年月日
 * @param {时间戳} timespan 
 * @param {*} istime 
 */
export function formatDate(timespan, istime = false) {
  // 解决在ios设备上时间出现NAN的问题
  timespan = String(timespan).replace(/-/g, "/");
  timespan = new Date(Date.parse(timespan)).getTime();

  // timespan = 1530518642787;
  var dateTime = new Date(timespan);
  var year = dateTime.getFullYear();
  var month = dateTime.getMonth() + 1;
  var day = dateTime.getDate();
  var hour = dateTime.getHours();
  var minute = dateTime.getMinutes();
  var second = dateTime.getSeconds();
  var now = new Date();
  // var now_new = Date.parse(now.toDateString()); //typescript转换写法
  var now_new = now.getTime();
  var milliseconds = 0;
  var timeSpanStr;
  milliseconds = now_new - timespan;
  if (milliseconds <= 1000 * 60 * 1) {
    timeSpanStr = '刚刚';
  } else if (1000 * 60 * 1 < milliseconds && milliseconds <= 1000 * 60 * 60) {
    timeSpanStr = Math.round((milliseconds / (1000 * 60))) + '分钟前';
  } else if (1000 * 60 * 60 * 1 < milliseconds && milliseconds <= 1000 * 60 * 60 * 24) {
    timeSpanStr = Math.round(milliseconds / (1000 * 60 * 60)) + '小时前';
  } else if (1000 * 60 * 60 * 24 < milliseconds && milliseconds <= 1000 * 60 * 60 * 24 * 7) {
    timeSpanStr = Math.round(milliseconds / (1000 * 60 * 60 * 24)) + '天前';
  } else if (milliseconds > 1000 * 60 * 60 * 24 * 7 && year == now.getFullYear()) {
      timeSpanStr = month + '-' + day;
  } else {
    timeSpanStr = year + '-' + padZero(month) + '-' + padZero(day);
  }
  //  else if (milliseconds > 1000 * 60 * 60 * 24 * 15 && year == now.getFullYear()) {
  //     timeSpanStr = month + '-' + day + ' ' + hour + ':' + minute;
  // } else {
  //     timeSpanStr = year + '-' + month + '-' + day + ' ' + hour + ':' + minute;
  // }
  return timeSpanStr;
}