is a symbol used to indicate the absence of an expression or a result. When it appears as a complete output expression, no output is printed.


Null
is a symbol used to indicate the absence of an expression or a result. When it appears as a complete output expression, no output is printed.
Details

- e1;e2;…;ek; returns Null, and prints no output.
- Expressions like f[e1,,e2] are interpreted to have Null between each pair of adjacent commas.
- Null represents the absence of content or elements in such constructs as InputField or Grid.
Examples
History
Introduced in 1988 (1.0) | Updated in 2007 (6.0)
Text
Wolfram Research (1988), Null, Wolfram Language function, https://reference.wolfram.com/language/ref/Null.html (updated 2007).
CMS
Wolfram Language. 1988. "Null." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2007. https://reference.wolfram.com/language/ref/Null.html.
APA
Wolfram Language. (1988). Null. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Null.html
BibTeX
@misc{reference.wolfram_2025_null, author="Wolfram Research", title="{Null}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/Null.html}", note=[Accessed: 08-August-2025]}
BibLaTeX
@online{reference.wolfram_2025_null, organization={Wolfram Research}, title={Null}, year={2007}, url={https://reference.wolfram.com/language/ref/Null.html}, note=[Accessed: 08-August-2025]}