UpperCaseQ

UpperCaseQ[string]

yields True if all the characters in the string are uppercase letters, and yields False otherwise.

Details

  • UpperCaseQ treats both ordinary and special characters.

Examples

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Basic Examples  (1)

Test whether a character is an uppercase letter:

Scope  (4)

Test whether all characters in a string are uppercase letters:

Accented letters are still treated as letters:

Gothic letters are treated as letters:

Greek letters are treated as letters:

Properties & Relations  (2)

All characters treated as uppercase letters:

No letters are both uppercase and lowercase:

Possible Issues  (1)

Some letters are neither uppercase nor lowercase:

Neat Examples  (1)

Find all letters that are neither uppercase nor lowercase:

Wolfram Research (1991), UpperCaseQ, Wolfram Language function, https://reference.wolfram.com/language/ref/UpperCaseQ.html (updated 1996).

Text

Wolfram Research (1991), UpperCaseQ, Wolfram Language function, https://reference.wolfram.com/language/ref/UpperCaseQ.html (updated 1996).

BibTeX

@misc{reference.wolfram_2020_uppercaseq, author="Wolfram Research", title="{UpperCaseQ}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/UpperCaseQ.html}", note=[Accessed: 19-April-2021 ]}

BibLaTeX

@online{reference.wolfram_2020_uppercaseq, organization={Wolfram Research}, title={UpperCaseQ}, year={1996}, url={https://reference.wolfram.com/language/ref/UpperCaseQ.html}, note=[Accessed: 19-April-2021 ]}

CMS

Wolfram Language. 1991. "UpperCaseQ." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 1996. https://reference.wolfram.com/language/ref/UpperCaseQ.html.

APA

Wolfram Language. (1991). UpperCaseQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/UpperCaseQ.html