What ⎟ means
It fills the repeatable middle of a tall right parenthesis. In mathematical typesetting, ⎞ is the hooked top, ⎠ the bottom, and ⎟ fills the gap.
Unicode retains it for mathematical display and print data streams. It is one piece of a built-up delimiter, not prose punctuation.
Don't confuse it with
4Combination ideas
1The top, middle, and bottom pieces forming one right parenthesis.
Questions people ask
1Why does ⎟ look like a vertical line by itself?
It is the straight middle. The curves belong to ⎞ and ⎠, so a font shows a vertical stroke when those end pieces are absent.
How to type ⎟
Windows (Word)
Alt+XType 239F, then Alt+X to get ⎟.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “right parenthesis extension”.
Linux
Ctrl+Shift+UType 239f, then Enter or Space.
HTML
⎟CSS
\239FCodes and encoding1 code points
HTML decimal
⎟
HTML hex
⎟
CSS content
content: "\239F";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%8E%9F
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.