undefined

A special case of error. It is expected that compilers will recognize this and insert error messages which are more appropriate to the context in which undefined appears.
A special case of error. It is expected that compilers will recognize this and insert error messages which are more appropriate to the context in which undefined appears.
Warning: undefined remains in code
Warning: undefined function remains in code
Deprecated: It is highly recommended that you either avoid partial functions or provide meaningful error messages
Warning: undefined function remains in code (or use error)
Call to errorX with default string
The undefined primitive represents an undefined value that was identified during normalization. This includes undefined results to compile-time evaluation, such as division by zero.
Warning: undefined should be used only for debugging
Warning: Undefined type remains in code
Warning: Undefined type remains in code
The promotion of undefined.
Placeholder similar to undefined.
The JS literal undefined
Create a BitVector with all its bits undefined