JavaScript Date.toString（）基数参数错误 [英] JavaScript Date.toString() radix argument error

问题描述

为什么以下代码不会将我的日期输出到字符串！？

Why won't the following code output my date to string!?

var d1 = Date.parse('10/29/1990 12:00:00 AM');
console.log(d1.toString('dd/MM/yyyy'));

错误是：

未捕获RangeError：toString（）基数参数必须介于2和
36之间

Uncaught RangeError: toString() radix argument must be between 2 and 36

只是尝试格式化日期......

Just trying to format the date...

推荐答案

因为 d1 不是 日期 object ，但是一个数字。 Date.parse 返回毫秒表示，您需要将其输入新日期或使用日期构造函数直接。

Because d1 is not a Date object, but a number. Date.parse returns the milliseconds representation, you will need to feed that into new Date or use the Date constructor directly.

由于JavaScript没有本机日期格式化函数，因此只有依赖于实现的 toString 和 toLocalString 和标准化的 toISOString 和 toUTCString （虽然在较旧的IE中不受支持）。相反，您必须通过获取单个组件并连接它们来手动进行格式化。幸运的是，有一堆图书馆可以帮助你。

And because JavaScript does not have a native date-formatting function, there are only the implementation-dependent toString and toLocalString and the standardized toISOString and toUTCString (though not supported in older IE). Instead, you will have to do the formatting manually by getting the single components and concatenating them. Luckily, there's a bunch of libaries to help you with that.

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