JavaScript日期时间与时光戳的调换函数分享,javascript

JavaScript日期时间与时间戳的改换函数分享,javascript

假使只是将日前时刻转成时间戳,能够间接选用new
Date().getTime()/一千;但若是是将某些具体时间或日期转成Unix时间戳,ie不支持像new
Date(“2011-1-1”)  那样带参数的主意,将赶回NaN。

对此,笔者写了以下函数,辅助ie6+,谷歌(Google),火狐等浏览器:

复制代码 代码如下:

function getTime(day){
 re =
/(\d{4})(?:-(\d{1,2})(?:-(\d{1,2}))?)?(?:\s+(\d{1,2}):(\d{1,2}):(\d{1,2}))?/.exec(day);
 return new
Date(re[1],(re[2]||1)-1,re[3]||1,re[4]||0,re[5]||0,re[6]||0).getTime()/1000;
}

//test
alert(getTime(“2013-02-03 10:10:10”));
alert(getTime(“2013-02-03”));
alert(getTime(“2013-02”));
alert(getTime(“2013”));

下边这一个将时刻戳调换到日期格式的函数,协理自定义的日期格式,效果类似PHP的date函数,同样支撑ie6+,谷歌,火狐等浏览器。这些函数是网络朋友达成的,今后有的时候光笔者也写一个出去
^_^

复制代码 代码如下:

function date(format, timestamp){
    var a, jsdate=((timestamp) ? new Date(timestamp*1000) : new
Date());
    var pad = function(n, c){
        if((n = n + “”).length < c){
            return new Array(++c – n.length).join(“0”) + n;
        } else {
            return n;
        }
    };
    var txt_weekdays = [“Sunday”, “Monday”, “Tuesday”, “Wednesday”,
“Thursday”, “Friday”, “Saturday”];
    var txt_ordin = {1:”st”, 2:”nd”, 3:”rd”, 21:”st”, 22:”nd”, 23:”rd”,
31:”st”};
    var txt_months = [“”, “January”, “February”, “March”, “April”,
“May”, “June”, “July”, “August”, “September”, “October”, “November”,
“December”];
    var f = {
        // Day
        d: function(){return pad(f.j(), 2)},
        D: function(){return f.l().substr(0,3)},
        j: function(){return jsdate.getDate()},
        l: function(){return txt_weekdays[f.w()]},
        N: function(){return f.w() + 1},
        S: function(){return txt_ordin[f.j()] ? txt_ordin[f.j()] :
‘th’},
        w: function(){return jsdate.getDay()},
        z: function(){return (jsdate – new Date(jsdate.getFullYear() +
“/1/1”)) / 864e5 >> 0},
     
        // Week
        W: function(){
            var a = f.z(), b = 364 + f.L() – a;
            var nd2, nd = (new Date(jsdate.getFullYear() +
“/1/1”).getDay() || 7) – 1;
            if(b <= 2 && ((jsdate.getDay() || 7) – 1) <= 2 – b){
                return 1;
            } else{
                if(a <= 2 && nd >= 4 && a >= (6 – nd)){
                    nd2 = new Date(jsdate.getFullYear() – 1 +
“/12/31”);
                    return date(“W”, Math.round(nd2.getTime()/1000));
                } else{
                    return (1 + (nd <= 3 ? ((a + nd) / 7) : (a – (7 –
nd)) / 7) >> 0);
                }
            }
        },
     
        // Month
        F: function(){return txt_months[f.n()]},
        m: function(){return pad(f.n(), 2)},
        M: function(){return f.F().substr(0,3)},
        n: function(){return jsdate.getMonth() + 1},
        t: function(){
            var n;
            if( (n = jsdate.getMonth() + 1) == 2 ){
                return 28 + f.L();
            } else{
                if( n & 1 && n < 8 || !(n & 1) && n > 7 ){
                    return 31;
                } else{
                    return 30;
                }
            }
        },
     
        // Year
        L: function(){var y = f.Y();return (!(y & 3) && (y % 1e2 || !(y
% 4e2))) ? 1 : 0},
        //o not supported yet
        Y: function(){return jsdate.getFullYear()},
        y: function(){return (jsdate.getFullYear() + “”).slice(2)},
     
        // Time
        a: function(){return jsdate.getHours() > 11 ? “pm” : “am”},
        A: function(){return f.a().toUpperCase()},
        B: function(){
            // peter paul koch:
            var off = (jsdate.getTimezoneOffset() + 60)*60;
            var theSeconds = (jsdate.getHours() * 3600) +
(jsdate.getMinutes() * 60) + jsdate.getSeconds() + off;
            var beat = Math.floor(theSeconds/86.4);
            if (beat > 1000) beat -= 1000;
            if (beat < 0) beat += 1000;
            if ((String(beat)).length == 1) beat = “00”+beat;
            if ((String(beat)).length == 2) beat = “0”+beat;
            return beat;
        },
        g: function(){return jsdate.getHours() % 12 || 12},
        G: function(){return jsdate.getHours()},
        h: function(){return pad(f.g(), 2)},
        H: function(){return pad(jsdate.getHours(), 2)},
        i: function(){return pad(jsdate.getMinutes(), 2)},
        s: function(){return pad(jsdate.getSeconds(), 2)},
        //u not supported yet
     
        // Timezone
        //e not supported yet
        //I not supported yet
        O: function(){
            var t = pad(Math.abs(jsdate.getTimezoneOffset()/60*100),
4);
            if (jsdate.getTimezoneOffset() > 0) t = “-” + t; else t =
“+” + t;
            return t;
        },
        P: function(){var O = f.O();return (O.substr(0, 3) + “:” +
O.substr(3, 2))},
        //T not supported yet
        //Z not supported yet
     
        // Full Date/Time
        c: function(){return f.Y() + “-” + f.m() + “-” + f.d() + “T” +
f.h() + “:” + f.i() + “:” + f.s() + f.P()},
        //r not supported yet
        U: function(){return Math.round(jsdate.getTime()/1000)}
    };
     
    return format.replace(/[\\]?([a-zA-Z])/g, function(t, s){
        if( t!=s ){
            // escaped
            ret = s;
        } else if( f[s] ){
            // a date function exists
            ret = f[s]();
        } else{
            // nothing special
            ret = s;
        }
        return ret;
    });
}

//test
alert(date(‘Y-m-d H:i:s’,(new Date).getTime()/1000));
alert(date(‘Y-m-d’,(new Date).getTime()/1000));
alert(date(‘Y-m-d H:i:s’,’1355252653′));

假设只是将这两天光阴转成时间戳,能够直接行使new
Date().getTime()/一千;但倘如若将某些具…

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                if(b <= 2 && ((jsdate.getDay() || 7) – 1) <= 2 –
b){
                    return 1;
                } else{

        // Week
            W: function(){
                var a = f.z(), b = 364 + f.L() – a;
                var nd2, nd = (new Date(jsdate.getFullYear() +
“/1/1”).getDay() || 7) – 1;

对此,小编写了以下函数,协理ie6+,Google,火狐等浏览器:

        // Year
            L: function(){
                var y = f.Y();
                return (!(y & 3) && (y % 1e2 || !(y % 4e2))) ? 1 : 0;
            },
            //o not supported yet
            Y: function(){
                return jsdate.getFullYear();
            },
            y: function(){
                return (jsdate.getFullYear() + “”).slice(2);
            },

代码如下: // 和PHP同样的小时戳格式化函数
// @param {string} format 格式 // @param {int} timestamp 要格式化的时刻
默感觉日前光阴 // @ret…

//test
alert(getTime(“2013-02-03 10:10:10”));
澳门新萄京8522,alert(getTime(“2013-02-03”));
alert(getTime(“2013-02”));
alert(getTime(“2013”));

    var txt_weekdays = [“Sunday”,”Monday”,”Tuesday”,”Wednesday”,
“Thursday”,”Friday”,”Saturday”];        

        return ret;
    });
}

复制代码 代码如下:

复制代码 代码如下:

    var txt_months = [“”, “January”, “February”, “March”, “April”,
“May”, “June”, “July”, “August”, “September”, “October”, “November”,
“December”];

若果只是将方今时间转成时间戳,可以直接利用new
Date().getTime()/一千;但一旦是将有个别具体日子或日期转成Unix时间戳,ie不辅助像new
Date(“二零一二-1-1”)  这样带参数的主意,将赶回NaN。

        return ret;
    });
}

// 和PHP一样的岁月戳格式化函数
// @param  {string} format    格式
// @param  {int}    timestamp 要格式化的时刻 默以为当前时刻
// @return {string}           格式化的光阴字符串
function date ( format, timestamp ) {
    var a, jsdate=((timestamp) ? new Date(timestamp*1000) : new
Date());
    var pad = function(n, c){
        if( (n = n + “”).length < c ) {
            return new Array(++c – n.length).join(“0”) + n;
        } else {
            return n;
        }
    };

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