Common type of expected results of functions contributing to code generation.
Includes undefined for allowing contributing functions to explicitly contribute
nothing, if required, in contrast to contributing empty strings,
which facilitates better formatting of the desired output, for example.
Common type of expected results of functions contributing to code generation. Includes
undefinedfor allowing contributing functions to explicitly contribute nothing, if required, in contrast to contributing empty strings, which facilitates better formatting of the desired output, for example.