Backtick
Typographical mark (`) / From Wikipedia, the free encyclopedia
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The backtick ` is a typographical mark used mainly in computing. It is also known as backquote, grave, or grave accent.
` | |
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Backtick | |
In Unicode | U+0060 ` GRAVE ACCENT (symbol) |
Graphical variants | |
` | |
U+FF40 ` FULLWIDTH GRAVE ACCENT | |
Related | |
See also | U+0300 ◌̀ COMBINING GRAVE ACCENT (diacritic) |
The character was designed for typewriters to add a grave accent to a (lower-case[lower-alpha 1]) base letter, by overtyping it atop that letter.[1] On early computer systems, however, this physical dead key+overtype function was rarely supported, being functionally replaced by precomposed characters.[lower-alpha 2] Consequently, this ASCII symbol was rarely (if ever) used in computer systems for its original aim and became repurposed for many unrelated uses in computer programming.
The sign is located on the left-top of a US or UK layout keyboard, next to the 1 key.[lower-alpha 3] On older keyboards, the Escape key was at this location, and the backtick key was somewhere on the right side of the layout. Provision (if any) of the backtick on other keyboards varies by national keyboard layout and keyboard mapping.