Time difference

formatSeconds: function (value) { 
    the let that = the this ; 

    var chetheTime = the parseInt (value); // value is a time stamp 
    var timestamp = ( new new a Date ()) the getTime ();.
     var date3 = chetheTime - timestamp;
 

    // Calculation the difference between the number of days 
    var days = Math.floor (date3 / (24 * 3600 * 1000 )) 

    // calculate hours 

    var leave1 date3% = (24 * 3600 * 1000) // after calculating the number of days remaining number of milliseconds 
    var hours = math.floor (leave1 / (3600 * 1000 ))
     // calculate the number of minutes difference 
    var% = leave1 leave2 (3600 * 1000) // milliseconds after calculating the remaining number of hours 
    var minutes = Math.floor (leave2 / (60 * 1000 )) 


    // calculated difference seconds 
    var leave3 leave2% = (60 * 1000) // the number of milliseconds to calculate the number of minutes remaining 
    var seconds the Math.round = (leave3 / 1000 ) 


    that.setData ({ 
      endtimeNow: (days > 0 (days + "day"):? '') + (hours> 0? (hours + "h"): '') + ( minutes> 0 (minutes + " min"?): '') + seconds + " s" 
    }) 
  } 
  //   later again 
  aginBuy: function (E) { 
    Console .log(e)
    let item = e.currentTarget.dataset.item;
    let orderd = this.data.orderd;
    let shopId = orderd.shopId;

    if (item.type == 0) {
      wx.navigateTo({
        url: '/page/home/pages/shops/shops?cheid=' + shopId
      })
    } else {
      wx.navigateTo({
        url: '/page/near/pages/shops/shops?cheid=' + shopId
      })
    }
  },