微信小程序开发中常用工具类的实例详解

前言：

做微信小程序当中，会遇到好多的工具类util.js，这里记载下来以便平常使用 (Ps:建议通过目录查看)

-获取日期（格式化）

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  }

-获取动态更新时间

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;  }

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