DateObjectQ

DateObjectQ[expr]

expr が有効な引数を持つDateObjectである場合にはTrueを返し,それ以外の場合にはFalseを返す.

詳細

  • DateObjectQ[expr]は,expr が有効な引数を持つDateObjectである(つまり認識された日付指定を持つ)場合を除いて,Falseを返す.

例題

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  (1)

DateObjectQは,式が有効な引数を持つDateObjectであるかどうかを検定する:

アプリケーション  (1)

DateObjectQは,関数のパターン検定に使うことができる:

Wolfram Research (2014), DateObjectQ, Wolfram言語関数, https://reference.wolfram.com/language/ref/DateObjectQ.html.

テキスト

Wolfram Research (2014), DateObjectQ, Wolfram言語関数, https://reference.wolfram.com/language/ref/DateObjectQ.html.

CMS

Wolfram Language. 2014. "DateObjectQ." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/DateObjectQ.html.

APA

Wolfram Language. (2014). DateObjectQ. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/DateObjectQ.html

BibTeX

@misc{reference.wolfram_2024_dateobjectq, author="Wolfram Research", title="{DateObjectQ}", year="2014", howpublished="\url{https://reference.wolfram.com/language/ref/DateObjectQ.html}", note=[Accessed: 22-November-2024 ]}

BibLaTeX

@online{reference.wolfram_2024_dateobjectq, organization={Wolfram Research}, title={DateObjectQ}, year={2014}, url={https://reference.wolfram.com/language/ref/DateObjectQ.html}, note=[Accessed: 22-November-2024 ]}