如何将Date对象格式化为字符串?


当前回答

这可以帮助:

export const formatDateToString = date => {
    if (!date) {
        return date;
    }
    try {
        return format(parse(date, 'yyyy-MM-dd', new Date()), 'dd/MM/yyyy');
    } catch (error) {
        return 'invalid date';
    }
};

其他回答

一个简单的函数,可以返回日期、日期+时间或仅返回时间:

var myDate = dateFormatter("2019-01-24 11:33:24", "date-time");
// >> RETURNS "January 24, 2019 11:33:24"

var myDate2 = dateFormatter("2019-01-24 11:33:24", "date");
// >> RETURNS "January 24, 2019"

var myDate3 = dateFormatter("2019-01-24 11:33:24", "time");
// >> RETURNS "11:33:24"


function dateFormatter(strDate, format){
    var theDate = new Date(strDate);
    if (format=="time")
       return getTimeFromDate(theDate);
    else{
       var dateOptions = {year:'numeric', month:'long', day:'numeric'};
       var formattedDate = theDate.toLocaleDateString("en-US", + dateOptions);
       if (format=="date")
           return formattedDate;
       return formattedDate + " " + getTimeFromDate(theDate);
    }
}

function getTimeFromDate(theDate){
    var sec = theDate.getSeconds();
    if (sec<10)
        sec = "0" + sec;
    var min = theDate.getMinutes();
    if (min<10)
        min = "0" + min;
    return theDate.getHours() + ':'+ min + ':' + sec;
}

如果您已经在项目中使用jQuery UI,您可以这样做:

var formatted = $.datepicker.formatDate("M d, yy", new Date("2014-07-08T09:02:21.377"));

// formatted will be 'Jul 8, 2014'

这里提供了一些可以使用的日期选择器日期格式选项。

new Date().toLocaleDateString()// "3/21/2018"

developer.mozilla.org上的更多文档

使用date.format库:

var dateFormat = require('dateformat');
var now = new Date();
dateFormat(now, "dddd, mmmm dS, yyyy, h:MM:ss TT");

返回:

Saturday, June 9th, 2007, 5:46:21 PM 

npm上的日期格式

http://jsfiddle.net/phZr7/1/

@Sébastien——可选的所有浏览器支持

new Date(parseInt(496407600)*1000).toLocaleDateString('de-DE', {
year: 'numeric',
month: '2-digit',
day: '2-digit'
}).replace(/\./g, '/');

文档:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toLocaleDateString


基于Date.toLocaleDateString的高阶标记模板文本示例:

const date = new Date(Date.UTC(2020, 4, 2, 3, 23, 16, 738));
const fmt = (dt, lc = "en-US") => (str, ...expr) =>
    str.map((str, i) => str + (expr[i]?dt.toLocaleDateString(lc, expr[i]) :'')).join('')

console.log(fmt(date)`${{year: 'numeric'}}-${{month: '2-digit'}}-${{day: '2-digit'}}`);
// expected output: "2020-05-02"