Do not include momentjs in the browser bundle if DatePicker and/or TimePicker are not used

[lhz516]

• I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

https://github.com/lhz516/hanzluo

Steps to reproduce

1. npm i antd, but don't import momentjs related components
2. Use webpack to bundle the app

What is expected?

moment won't be included in the browser bundle if DatePicker and/or TimePicker are not used

What is actually happening?

moment is in the browser bundle no matter if DatePicker and/or TimePicker are used. At least the locales shouldn't be included.

Run npm ls moment

Environment	Info
antd	3.26.3 (Also tested 3.26.5)
React	16.12.0
System	Win 10
Browser	Any

[afc163]

It should be fixed in #19115 already.

[lhz516]

@afc163 I already set mode: 'production' in my webpack config. I assume the tree shaking is enabled. Is there anything else I need to do to get rid of these unnecessary modules?

[afc163]

https://github.com/lhz516/hanzluo/pull/3

[lhz516]

@zombieJ Tree shaking worked by adding libraryDirectory: 'es' into babel-plugin-import's config.

cc: https://github.com/lhz516/hanzluo/pull/3 @afc163