What ⍽ means
It labels a no-break space; it is not whitespace itself. A technical example can use ⍽ to show where the invisible space belongs. The character stays visible; it does not insert that space or prevent a line break.
Unicode records its keyboard-symbol lineage in ISO 9995-7, a standard for keyboard signs. In a 2016 CommonMark discussion about marking spaces in technical examples, ⍽ appeared among candidate symbols; participants also preferred other marks.
Don't confuse it with
4Questions people ask
1Does ⍽ create a non-breaking space?
No. ⍽ is a visible keyboard sign for the function; the actual no-break space is whitespace, and ⍽ does not affect line wrapping.
How to type ⍽
Windows (Word)
Alt+XType 237D, 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 “shouldered open box”.
Linux
Ctrl+Shift+UType 237d, then Enter or Space.
HTML
⍽CSS
\237DCodes and encoding1 code points
HTML decimal
⍽
HTML hex
⍽
CSS content
content: "\237D";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%8D%BD
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.