UpperCaseQ
UpperCaseQ[string]
yields True if all the characters in the string are uppercase letters, and yields False otherwise.
Examples
open allclose allScope (4)
Properties & Relations (2)
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).
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