小程序常用工具类全面详解与深度剖析教程

function formatTime(date) {

 var year = date.getFullYear()

 var month = date.getMonth() + 1

 var day = date.getDate()

 var hour = date.getHours()

 var minute = date.getMinutes()

 var second = date.getSeconds()

 return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')

}

function formatNumber(n) {

 n = n.toString()

 return n[1] ? n : '0' + n

}

function getDateDiff (dateTimeStamp) {

 var minute = 1000 * 60;

 var hour = minute * 60;

 var day = hour * 24;

 var halfamonth = day * 15;

 var month = day * 30;

 var year = day * 365;

 var now = new Date().getTime();

 var diffValue = now - dateTimeStamp;

 if(diffValue < 0){

  //非法操作

  return '数据出错';

 }

 var yearC = diffValue / year;

 var monthC = diffValue / month;

 var weekC = diffValue / (7 * day);

 var dayC = diffValue / day;

 var hourC = diffValue / hour;

 var minC = diffValue / minute;

 if(yearC >= 1){

  result = parseInt(yearC) + '年以前';

 }else if(monthC >= 1){

  result = parseInt(monthC) + '个月前';

 }else if(weekC >= 1){

  result = parseInt(weekC) + '星期前';

 }else if(dayC >= 1){

  result = parseInt(dayC) + '天前';

 }else if(hourC >= 1){

  result = parseInt(hourC) + '小时前';

 }else if(minC >= 5){

  result = parseInt(minC) + '分钟前';

 }else{

  result = '刚刚发表';

 }

 return result;

}