When creating a new unique note, I would like it to create the note with "2023-05-08 ".
Note the space after the date. This means I can just start typing “Foo”
and get “2023-05-08 Foo”.
Currently the config for Unique notes silently trims the space off the Unique prefix format, so you get “2023-05-08Foo”.
This can be put together using some custom plugins, but with this simple (? 
change it doesn’t need to be.
Version: v1.2.7
How i can creat Unique prefix format and space in obsidian ???
We are asking for this much needed feature
If this is not selected for implementation, then I found a work-around:
Unique prefix format one ordinary space character, then hit paste (Ctrl-V or as appropriate for your platform)0x200b seems to fool trim() into ignoring the space before it, and you’ll get the space you want in new notes.
Great suggestion, great website, and also a nice universal solution for many similar situations. Found this thread pretty high up on a Google search so I thought I’d add my own attempt for future searchers.
I didn’t immediately understand your instructions as “zero width space” was not familiar to me but for those who are not sure if you’re doing it right: enter the ‘hidden’ character after a normal space. For example, to get “UnixSeconds Space Dash Space” for mine I needed to use X - as normal and then add the ‘U+200B’ character as the fifth one. You won’t see any change until you close and try it out. Worked right away for a new note.