How can I see the Unicode code point of the character where the cursor is? For example, if my cursor is on a
⌘ character, I'd like Vim to tell me that it is U+2318.
Alternative information, such as the base-10 representation (8984) or the UTF-8 representation (E2 8C 98) would be acceptable.
I ask about Unicode and UTF-8 because they are most common, but if the answer generalizes to other character sets and encodings, that would be good to know as well.