我试图使用JS将日期对象转换为YYYYMMDD格式的字符串。有没有比连接Date.getYear(), Date.getMonth()和Date.getDay()更简单的方法?
当前回答
如果你不需要一个纯JS的解决方案,你可以使用jQuery UI来做这样的工作:
$.datepicker.formatDate('yymmdd', new Date());
我通常不喜欢导入太多的库。但是jQuery UI非常有用,你可能会在项目的其他地方用到它。
更多示例请访问http://api.jqueryui.com/datepicker/
其他回答
const date = new Date()
console.log(date.toISOString().split('T')[0]) // 2022-12-27
纯JS (ES5)解决方案,没有任何可能的日期跳转问题,由date . toisostring()打印UTC:
var now = new Date();
var todayUTC = new Date(Date.UTC(now.getFullYear(), now.getMonth(), now.getDate()));
return todayUTC.toISOString().slice(0, 10).replace(/-/g, '');
这是为了回应@weberste对@Pierre Guilbert的回答的评论。
<pre>Date.prototype.getFromFormat = function(format) {
var yyyy = this.getFullYear().toString();
format = format.replace(/yyyy/g, yyyy)
var mm = (this.getMonth()+1).toString();
format = format.replace(/mm/g, (mm[1]?mm:"0"+mm[0]));
var dd = this.getDate().toString();
format = format.replace(/dd/g, (dd[1]?dd:"0"+dd[0]));
var hh = this.getHours().toString();
format = format.replace(/hh/g, (hh[1]?hh:"0"+hh[0]));
var ii = this.getMinutes().toString();
format = format.replace(/ii/g, (ii[1]?ii:"0"+ii[0]));
var ss = this.getSeconds().toString();
format = format.replace(/ss/g, (ss[1]?ss:"0"+ss[0]));
var ampm = (hh >= 12) ? "PM" : "AM";
format = format.replace(/ampm/g, (ampm[1]?ampm:"0"+ampm[0]));
return format;
};
var time_var = $('#899_TIME');
var myVar = setInterval(myTimer, 1000);
function myTimer() {
var d = new Date();
var date = d.getFromFormat('dd-mm-yyyy hh:ii:ss:ampm');
time_var.text(date);
} </pre>
use the code and get the output like **26-07-2017 12:29:34:PM**
check the below link for your reference
https://parthiban037.wordpress.com/2017/07/26/date-and-time-format-in-oracle-apex-using-javascript/
您可以简单地使用这一行代码来获取日期
var date = new Date().getFullYear() + "-" + (parseInt(new Date().getMonth()) + 1) + "-" + new Date().getDate();
您可以创建自己的函数,如下所示
function toString(o, regex) {
try {
if (!o) return '';
if (typeof o.getMonth === 'function' && !!regex) {
let splitChar = regex.indexOf('/') > -1 ? '/' : regex.indexOf('-') > -1 ? '-' : regex.indexOf('.') > -1 ? '.' : '';
let dateSeparate = regex.split(splitChar);
let result = '';
for (let item of dateSeparate) {
let val = '';
switch (item) {
case 'd':
val = o.getDate();
break;
case 'dd':
val = this.date2Char(o.getDate());
break;
case 'M':
val = o.getMonth() + 1;
break;
case 'MM':
val = this.date2Char(o.getMonth() + 1);
break;
case 'yyyy':
val = o.getFullYear();
break;
case 'yy':
val = this.date2Char(o.getFullYear());
break;
default:
break;
}
result += val + splitChar;
}
return result.substring(0, result.length - 1);
} else {
return o.toString();
}
} catch(ex) { return ''; }
}
function concatDateToString(args) {
if (!args.length) return '';
let result = '';
for (let i = 1; i < args.length; i++) {
result += args[i] + args[0];
}
return result.substring(0, result.length - 1);
}
function date2Char(d){
return this.rightString('0' + d);
}
function rightString(o) {
return o.substr(o.length - 2);
}
使用:
var a = new Date();
console.log('dd/MM/yyyy: ' + toString(a, 'dd/MM/yyyy'));
console.log('MM/dd/yyyy: ' + toString(a, 'MM/dd/yyyy'));
console.log('dd/MM/yy: ' + toString(a, 'dd/MM/yy'));
console.log('MM/dd/yy: ' + toString(a, 'MM/dd/yy'));