Dayjs: date string parse not work on IE11 when timezone not contain colon

[languanghao]

From ISO 8601 , it allows timezone with or without colon.

But dayjs can not work on ie11 when date string timezone without colon. This is the example: https://jsbin.com/royewipupa/edit?html,js,console,output

[loveonelong]

The first, about your jsbin code:
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js' /> is invalid.
The correct way is <script src=''></script>.

IE11 does not support timezone without the colon, like new Date("2000-08-06T16:00:00.000+0800") -> Invalid Date.

417 DayJS depends heavily on native Date.

You also can view http://dygraphs.com/date-formats.html or https://segmentfault.com/a/1190000003710954?mType=Group

[iamkun]

try CustomParseFormat

[fabb]

I tried 'yyyy-MM-dd\'T\'HH:mm:ssZ', but it still does not parse.

[fabb]

I ended up inserting the colon with regex before passing it to dayjs...

isoDate.replace(/([+-]\d{2})(\d{2})$/g, '$1:$2')

[iamkun]

I tried 'yyyy-MM-dd\'T\'HH:mm:ssZ', but it still does not parse.

@fabb a reproduction demo, please?

[fabb]

Same as the above demo, but with the parse format passed as 2nd parameter:
https://jsbin.com/jirosazeta/1/edit?html,js,console,output

[xxyuk]

@fabb

You have to use CustomParseFormat plugin first.

dayjs.extend(customParseFormat)

after that you could pass format as 2nd parameter:

https://github.com/iamkun/dayjs/blob/dev/docs/en/Plugin.md#customparseformat