将字符串转换为日期格式（yyyy-MM-dd） [英] converts string into date format(yyyy-MM-dd)

问题描述

var fromDate = new Date($("#Date_From").val());
                           var date = new Date(fromDate).toDateString("yyyy-MM-dd");

但它不会将日期更改为所需格式，即yyyy-MM-dd

but it does not changes the date into required format which is yyyy-MM-dd

推荐答案

（ ＃Date_From）。val（））;
var date = new 日期（fromDate）.toDateString（ yyyy-MM-dd）;

("#Date_From").val()); var date = new Date(fromDate).toDateString("yyyy-MM-dd");

但它没有将日期更改为所需的格式，即yyyy-MM-dd

but it does not changes the date into required format which is yyyy-MM-dd

显然，你不明白什么是类型/对象Date的变量。 />


Date或对象类型的变量Date包含表示Date或DateTime的值。这是一个适合比较2个日期的内部格式。

内部格式可以像yyyymmdd。

将日期复制到日期时没有格式转换。



将字符串转换为日期或将日期转换为字符串时的格式转换。



尝试格式化日期变量，同时复制到另一个日期变量是没有意义的。



我建议搜索有关详细信息的教程。

Obviously, you don't understand what is a variable of type/object Date.

A variable of type Date or an object Date contains a value representing a Date or DateTime. This is an internal format suited for comparing 2 Dates.
The internal format can be like yyyymmdd.
There is no format conversion when copying a Date to a Date.

There format conversion on when you convert a String to a Date or a Date to a String.

Trying to format a Date variable while copying to another Date variable is non sense.

I recommend to search for tutorials for more details.

您好，



我不确定您是否可以将特定格式传递给toDateString。

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString?redirectlocale=en-US&redirectslug=JavaScript%2FReference%2FGl obal_Objects％2FDate％2FtoDateString [ ^ ]



我会考虑退房一个名为moment.js的库，用于解析，验证，操作和格式化日期：

http://momentjs.com/ [ ^ ]

Hi,

I am not sure if you can pass a specific format to the toDateString.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toDateString?redirectlocale=en-US&redirectslug=JavaScript%2FReference%2FGlobal_Objects%2FDate%2FtoDateString[^]

I would consider checking out a library called moment.js for parsing, validating, manipulating, and formatting dates:
http://momentjs.com/[^]

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