WOLFRAM

Wolfram Language & System Documentation Center

MSPValueQ[var1,var2,…]

returns True if all the variables have values.

Details
Details and Options Details and Options
Examples  
Basic Examples  
Tech Notes
Cite this Page
MSP`
MSP`

MSPValueQ

MSPValueQ[var1,var2,…]

returns True if all the variables have values.

Details

  • MSPValueQ is a utility function that tests whether variables have values.

Examples

Basic Examples  (1)

You can simulate how the functions work by loading the package:

The variable $$expr has a value, so the result is True:

Here, $$expr has no value, so the result is False:

All the variables must have values in order for MSPValueQ to return True:

Wolfram Research (1996), MSPValueQ, Wolfram Language function, https://reference.wolfram.com/language/WolframWebEngine/ref/MSPValueQ.html.

Text

Wolfram Research (1996), MSPValueQ, Wolfram Language function, https://reference.wolfram.com/language/WolframWebEngine/ref/MSPValueQ.html.

CMS

Wolfram Language. 1996. "MSPValueQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/WolframWebEngine/ref/MSPValueQ.html.

APA

Wolfram Language. (1996). MSPValueQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/WolframWebEngine/ref/MSPValueQ.html

BibTeX

@misc{reference.wolfram_2025_mspvalueq, author="Wolfram Research", title="{MSPValueQ}", year="1996", howpublished="\url{https://reference.wolfram.com/language/WolframWebEngine/ref/MSPValueQ.html}", note=[Accessed: 25-August-2025]}

BibLaTeX

@online{reference.wolfram_2025_mspvalueq, organization={Wolfram Research}, title={MSPValueQ}, year={1996}, url={https://reference.wolfram.com/language/WolframWebEngine/ref/MSPValueQ.html}, note=[Accessed: 25-August-2025]}