-
-
Save OneYX/f1a457db3f4efd65e5124c31c5c92148 to your computer and use it in GitHub Desktop.
JAVASCRIPT:时间格式化
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/** | |
* 对Date的扩展,将 Date 转化为指定格式的String | |
* 月(M)、日(d)、12小时(h)、24小时(H)、分(m)、秒(s)、周(E)、季度(q) 可以用 1-2 个占位符 | |
* 年(y)可以用 1-4 个占位符,毫秒(S)只能用 1 个占位符(是 1-3 位的数字) | |
* eg: | |
* (new Date()).pattern("yyyy-MM-dd hh:mm:ss.S") ==> 2007-07-02 08:09:04.423 | |
* (new Date()).pattern("yyyy-MM-dd E HH:mm:ss") ==> 2007-03-10 二 20:09:04 | |
* (new Date()).pattern("yyyy-MM-dd EE hh:mm:ss") ==> 2007-03-10 周二 08:09:04 | |
* (new Date()).pattern("yyyy-MM-dd EEE hh:mm:ss") ==> 2007-03-10 星期二 08:09:04 | |
* (new Date()).pattern("yyyy-M-d h:m:s.S") ==> 2007-7-2 8:9:4.18 | |
*/ | |
Date.prototype.format = function(fmt) { | |
var o = { | |
"M+": this.getMonth() + 1, | |
//月份 | |
"d+": this.getDate(), | |
//日 | |
"h+": this.getHours() % 12 == 0 ? 12 : this.getHours() % 12, | |
//小时 | |
"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 | |
}; | |
var week = { | |
"0": "\u65e5", | |
"1": "\u4e00", | |
"2": "\u4e8c", | |
"3": "\u4e09", | |
"4": "\u56db", | |
"5": "\u4e94", | |
"6": "\u516d" | |
}; | |
if (/(y+)/.test(fmt)) { | |
fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length)); | |
} | |
if (/(E+)/.test(fmt)) { | |
fmt = fmt.replace(RegExp.$1, ((RegExp.$1.length > 1) ? (RegExp.$1.length > 2 ? "\u661f\u671f": "\u5468") : "") + week[this.getDay() + ""]); | |
} | |
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; | |
} | |
//test | |
//alert((new Date()).format("yyyy-MM-dd EEE hh:mm:ss")); |
Author
OneYX
commented
Dec 7, 2017
•
Date.prototype.format = function (mask) {
var d = this;
var zeroize = function (value, length) {
if (!length) length = 2;
value = String(value);
for (var i = 0, zeros = ''; i < (length - value.length); i++) {
zeros += '0';
}
return zeros + value;
};
return mask.replace(/"[^"]*"|'[^']*'|/b ( ? : d {
1, 4
} | m {
1, 4
} | yy( ? : yy) ? | ([hHMstT]) / 1 ? | [lLZ]) / b / g, function ($0) {
switch ($0) {
case 'd':
return d.getDate();
case 'dd':
return zeroize(d.getDate());
case 'ddd':
return ['Sun', 'Mon', 'Tue', 'Wed', 'Thr', 'Fri', 'Sat'][d.getDay()];
case 'dddd':
return ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'][d.getDay()];
case 'M':
return d.getMonth() + 1;
case 'MM':
return zeroize(d.getMonth() + 1);
case 'MMM':
return ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'][d.getMonth()];
case 'MMMM':
return ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'][d.getMonth()];
case 'yy':
return String(d.getFullYear()).substr(2);
case 'yyyy':
return d.getFullYear();
case 'h':
return d.getHours() % 12 || 12;
case 'hh':
return zeroize(d.getHours() % 12 || 12);
case 'H':
return d.getHours();
case 'HH':
return zeroize(d.getHours());
case 'm':
return d.getMinutes();
case 'mm':
return zeroize(d.getMinutes());
case 's':
return d.getSeconds();
case 'ss':
return zeroize(d.getSeconds());
case 'l':
return zeroize(d.getMilliseconds(), 3);
case 'L':
var m = d.getMilliseconds();
if (m > 99) m = Math.round(m / 10);
return zeroize(m);
case 'tt':
return d.getHours() < 12 ? 'am' : 'pm';
case 'TT':
return d.getHours() < 12 ? 'AM' : 'PM';
case 'Z':
return d.toUTCString().match(/[A-Z]+$/);
// Return quoted strings with the surrounding quotes removed
default:
return $0.substr(1, $0.length - 2);
}
});
};
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment