JQuery 日期转换日期方法封装

1. C#返回日期格式转换为时间戳，再转化为前端日期格式; nowDate是C#返回的日期格式变量；

   var timeStamp = parseInt(nowDate.replace("/Date(", "").replace(")/", ""), 10);
   var newTime = new Date(timeStamp); //就得到普通的时间了

2. JQuery 日期格式转换封装方法；主要有

2.1 日期格式字符串转换扩展方法：

String.prototype.formatDate = function (fmt) {
if (this.valueOf() == "null" || this.valueOf() == "undefined" || this.valueOf() == "")
return "";
else if (typeof this.valueOf() == "string") {
if (this.valueOf().indexOf("/Date(") > -1) {
var formats = typeof fmt == undefined || fmt == null || fmt == "" ? 'yyyy-MM-dd hh:mm' : fmt;
var time = eval(this.valueOf().replace(//Date((d+))//gi, "new Date($1)")).format(formats);
return time;
}
}
return this.valueOf();
};

2.2  日期格式转换扩展方法：

Date.prototype.format = function (fmt) {
    var o = {
        "M+": this.getMonth() + 1, //月份
        "d+": this.getDate(), //日
        "h+": this.getHours(), //小时
        "m+": this.getMinutes(), //分
        "s+": this.getSeconds(), //秒
        "q+": Math.floor((this.getMonth() + 3) / 3), //季度
        "S": this.getMilliseconds() //毫秒
    };
    fmt = fmt || "yyyy-MM-dd";
    if (/(y+)/.test(fmt))
        fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var 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;
}

2.3 计算两个日期的时间差值：

/**
 * 计算时间戳之间的差值
 * @param startTime 开始时间戳
 * @param endTime 结束时间戳
 * @param type 返回指定类型差值(year, month, day, hour, minute, second)
 */
function DateDiff(startTime, endTime, type) {
    var timeDiff = endTime - startTime
    switch (type) {
        case "year":
            return Math.floor(timeDiff / 86400 / 365);
            break;
        case "month":
            return Math.floor(timeDiff / 86400 / 30);
            break;
        case "day":
            return Math.floor(timeDiff / 86400);
            break;
        case "hour":
            return Math.floor(timeDiff / 3600);
            break;
        case "minute":
            return Math.floor(timeDiff / 60);
            break;
        case "second":
            return timeDiff % 60;
            break;
    }

2.4 日期格式转换时间戳方法

<script type="text/javascript">
$.extend({
    TimeExtension:{
        CurTime: function(){
            return Date.parse(new Date())/1000;
        },
        DateToUnix: function(string) {
            var f = string.split(' ', 2);
            var d = (f[0] ? f[0] : '').split('-', 3);
            var t = (f[1] ? f[1] : '').split(':', 3);
            return (new Date(
                parseInt(d[0], 10) || null,
                (parseInt(d[1], 10) || 1) - 1,
                parseInt(d[2], 10) || null,
                parseInt(t[0], 10) || null,
                parseInt(t[1], 10) || null,
                parseInt(t[2], 10) || null
                )).getTime() / 1000;
        },
        UnixToDate: function(unixTime, isFull, timeZone) {
            if (typeof (timeZone) == 'number'){
                unixTime = parseInt(unixTime) + parseInt(timeZone) * 60 * 60;
            }
            var time = new Date(unixTime * 1000);
            var dateStr = "";
            dateStr += time.getUTCFullYear() + "-";
            dateStr += (time.getUTCMonth()+1) + "-";
            dateStr += time.getUTCDate();
            if (isFull === true){
                dateStr += "" + time.getUTCHours() + ":";
                dateStr += time.getUTCMinutes() + ":";
                dateStr += time.getUTCSeconds();
            }
            return dateStr;
        }
    }
});
</script>

测试示例：

console.log($.TimeExtension.CurTime()); 
//1631515207
$.TimeExtension.UnixToDate(1631515207)
//"2021-9-13"
$.TimeExtension.DateToUnix("2021-9-13")
//1631462400