将长日期与时间转换为mm-dd-yyyy hh：mm AM / PM [英] Converting a long date with time to mm-dd-yyyy hh:mm AM/PM

问题描述

我需要你的帮助。

你如何使用javascript将长日期字符串与时间转换为日期/时间格式：mm-dd-yyyy hh：mm AM / PM

How can you, using javascript, convert a long date string with time to a date/time format of: mm-dd-yyyy hh:mm AM/PM

ie。

Wed May 27 10:35:00 EDT 2015

到

05-27-2015 10:35 AM

推荐答案

可悲的是，JS Date 对象没有灵活的内置格式方法，所以你必须手动完成（或者带插件/库）。以下是您手动操作的方法：

Sadly, there is no flexible, built-in "format" method for JS Date objects, so you have to do it manually (or with a plug-in/library). Here is how you would do it manually:

function formatDate(dateVal) {
    var newDate = new Date(dateVal);

    var sMonth = padValue(newDate.getMonth() + 1);
    var sDay = padValue(newDate.getDate());
    var sYear = newDate.getFullYear();
    var sHour = newDate.getHours();
    var sMinute = padValue(newDate.getMinutes());
    var sAMPM = "AM";

    var iHourCheck = parseInt(sHour);

    if (iHourCheck > 12) {
        sAMPM = "PM";
        sHour = iHourCheck - 12;
    }
    else if (iHourCheck === 0) {
        sHour = "12";
    }

    sHour = padValue(sHour);

    return sMonth + "-" + sDay + "-" + sYear + " " + sHour + ":" + sMinute + " " + sAMPM;
}

function padValue(value) {
    return (value < 10) ? "0" + value : value;
}

使用您的示例日期。 。 。

Using your example date . . .

formatDate("Wed May 27 10:35:00 EDT 2015")  ===>  "05-27-2015 10:35 AM"

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