The CDC's recommendation that doctors give every pregnant woman a Tdap vaccination during every pregnancy â regardless of whether a woman has already received one dose of Tdap â is an off-label use of the vaccine.
Literals and Constants in C#. Literal is a source code representation of a value, i.e. it is a value that has been hard-coded directly into your source. x is a variable, and 100 is a literal.
Writing character and string literals. A single character is surrounded by ASCII single quotes, ', and has type Char. ghci> 'c' 'c' ghci> :type 'c' 'c' :: Char. A string literal is surrounded by double quotes, , and has type [Char] (more often written as String).