JavaScript - 验证日期 [英] JavaScript - Validate Date

问题描述

我有一个HTML文本字段。我想通过JavaScript验证输入的值是MM / DD / YY或MM / D / YY或MM / DD / YYYY或MM / D / YYYY形式的有效日期。有没有这样的功能？

我认为有一些类似isNaN的东西，但我看不到任何东西。 JavaScript是否可以验证日期？

解决方案

验证日期？

否。

有没有这样的功能？

否。

您将需要编写自己的验证函数来解析日期格式（请注意正则表达式），然后确定它是否在您的特定标准中有效。

I have an HTML text field. I want to validate via JavaScript that the value entered is a valid date in the form of "MM/DD/YY" or "MM/D/YY" or "MM/DD/YYYY" or "MM/D/YYYY". Is there a function that does this?

I sort of assumed there was something like isNaN but I don't see anything. Is it true that JavaScript can't validate dates?

解决方案

Is it true that JavaScript can't validate dates?

No.

Is there a function that does this?

No.

You will need to write your own validation function to parse the date format (regex comes to mind) and then determine if it is valid within your specific criteria.

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