Re: How to remove a property from an overlay?

[Fu Yuan]

> 在 2021年7月31日，上午4:46，Marcin Borkowski <mbork@mbork.pl> 写道：
> 
> 
>> On 2021-07-30, at 22:02, Stefan Monnier via Users list for the GNU Emacs 
>> text editor <help-gnu-emacs@gnu.org> wrote:
>> 
>> Marcin Borkowski [2021-07-30 20:31:35] wrote:
>>> is there any way I can remove property `prop' from overlay `ovl' besides
>>> (overlay-put ovl 'prop nil)
>>> which does not really remove it, only sets it to nil?
>> 
>> The recommendation is to try and make sure you always give semantics to
>> those properties such that nil behaves the same as the absence of
>> the property.
> 
> Could that be put in the manual?

Reminds me of the similar property of plists, we could also add to plist’s 
manual.

Yuan