Office.js support compare document functionality equivalent to Application.CompareDocuments

Compare is supported for Windows and Mac now: https://learn.microsoft.com/en-us/javascript/api/requirement-sets/word/word-api-desktop-1.1-requirement-set?view=common-js-preview

Also, in preview requirement set, you could compare base 64 format: https://learn.microsoft.com/en-us/javascript/api/requirement-sets/word/word-preview-apis?view=common-js-preview

We need this feature. Any progress?

I need compare and combine features in office.js. I'm waiting for a development on this issue!

It's pretty important for us, is there an update?

Is there any news ? 

Please this feature would be much appreciated!