将javascript转换为日期对象到mysql日期格式(YYYY-MM-DD) [英] Convert javascript to date object to mysql date format (YYYY-MM-DD)

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问题描述

我正在尝试使用javascript将日期对象转换为有效的mysql日期 - 这是最好的方法是什么?

I'm trying to use javascript to convert a date object into a valid mysql date - what is the best way to do this?

推荐答案

最好使用像 Date.js 这样的图书馆(虽然没有维护年)或 Moment.js

Probably best to use a library like Date.js (although that hasn't been maintained in years) or Moment.js.

但要做到手动,你可以使用 Date#getFullYear() Date#getMonth()(以0 =所以你可能想要+ 1)和 Date#getDate()(月的日期)。只需填写月份和日期到两个字符,例如:

But to do it manually, you can use Date#getFullYear(), Date#getMonth() (it starts with 0 = January, so you probably want + 1), and Date#getDate() (day of month). Just pad out the month and day to two characters, e.g.:

(function() {
    Date.prototype.toYMD = Date_toYMD;
    function Date_toYMD() {
        var year, month, day;
        year = String(this.getFullYear());
        month = String(this.getMonth() + 1);
        if (month.length == 1) {
            month = "0" + month;
        }
        day = String(this.getDate());
        if (day.length == 1) {
            day = "0" + day;
        }
        return year + "-" + month + "-" + day;
    }
})();

用法:

var dt = new Date();
var str = dt.toYMD();

请注意,该函数有一个名称,这对于调试目的很有用,但是由于匿名范围功能没有污染全球命名空间。

Note that the function has a name, which is useful for debugging purposes, but because of the anonymous scoping function there's no pollution of the global namespace.

使用本地时间;对于UTC,只需使用UTC版本( getUTCFullYear 等)。

That uses local time; for UTC, just use the UTC versions (getUTCFullYear, etc.).

警告:我刚刚抛出,这完全未经测试。

Caveat: I just threw that out, it's completely untested.

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