日期:2014-05-16  浏览次数:20358 次

js日期时间函数(经典+完善+实用)

日期时间脚本库方法列表

Date.prototype.isLeapYear?判断闰年
Date.prototype.Format?日期格式化
Date.prototype.DateAdd?日期计算
Date.prototype.DateDiff?比较日期差
Date.prototype.toString?日期转字符串
Date.prototype.toArray?日期分割为数组
Date.prototype.DatePart?取日期的部分信息
Date.prototype.MaxDayOfDate?取日期所在月的最大天数
Date.prototype.WeekNumOfYear?判断日期所在年的第几周
StringToDate?字符串转日期型
IsValidDate?验证日期有效性
CheckDateTime?完整日期时间检查
daysBetween?日期天数差

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//---------------------------------------------------   
// 判断闰年   
//---------------------------------------------------   
Date.prototype.isLeapYear = function()    
{    
    return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0)));    
}    
   
//---------------------------------------------------   
// 日期格式化   
// 格式 YYYY/yyyy/YY/yy 表示年份   
// MM/M 月份   
// W/w 星期   
// dd/DD/d/D 日期   
// hh/HH/h/H 时间   
// mm/m 分钟   
// ss/SS/s/S 秒   
//---------------------------------------------------   
Date.prototype.Format = function(formatStr)    
{    
    var str = formatStr;    
    var Week = ['日','一','二','三','四','五','六'];   
   
    str=str.replace(/yyyy|YYYY/,this.getFullYear());    
    str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));    
   
    str=str.replace(/MM/,this.getMonth()>9?this.getMonth().toString():'0' + this.getMonth());    
    str=str.replace(/M/g,this.getMonth());    
   
    str=str.replace(/w|W/g,Week[this.getDay()]);    
   
    str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate());    
    str=str.replace(/d|D/g,this.getDate());    
   
    str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():'0' + this.getHours());    
    str=str.replace(/h|H/g,this.getHours());    
    str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():'0' + this.getMinutes());    
    str=str.replace(/m/g,this.getMinutes());    
   
    str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():'0' + this.getSeconds());    
    str=str.replace(/s|S/g,this.getSeconds());    
   
    return str;    
}    
   
//+---------------------------------------------------   
//| 求两个时间的天数差 日期格式为 YYYY-MM-dd    
//+---------------------------------------------------   
function daysBetween(DateOne,DateTwo)   
{    
    var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-'));   
    var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1);   
    var OneYear = DateOne.substring(0,DateOne.indexOf ('-'));   
   
    var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-'));   
    var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1);   
    var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-'));   
   
    var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000);    
    return Math.abs(cha);   
}   
   
   
//+---------------------------------------------------   
//| 日期计算   
//+---------------------------------------------------   
Date.prototype.DateAdd = function(strInterval, Number) {    
    var dtTmp = this;   
    switch (strInterval) {    
        case 's' :return new Date(Date.parse(dtTmp) + (1000 * Number));   
        case 'n' :return new Date(Date.parse(dtTmp) + (60000 * Number));   
        case 'h' :return new Date(Date.parse(dtTmp) + (3600000 * Number));   
        case 'd' :return new Date(Date.parse(dtTmp) + (86400000 * Number));   
        case 'w' :return new Date(Date.parse(dtTmp) + ((86400000 * 7) * Number));   
        case 'q' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());   
        case 'm' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeco