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.
2.4.1 String literals. String literals are described by the following lexical definitions: In plain English: String literals can be enclosed in matching single quotes (') or double quotes (). They can also be enclosed in matching groups of three single or double quotes (these are generally referred to as triple-quoted strings).