Failsafe
Failsafe[f][x1,x2,…]
xiの中に失敗とみなされるものがない場合は f[x1,x2,…]を返す.それ以外の場合は最初に失敗した xiを返す.
例題
すべて開くすべて閉じる例 (2)
スコープ (2)
Wolfram Research (2025), Failsafe, Wolfram言語関数, https://reference.wolfram.com/language/ref/Failsafe.html.
テキスト
Wolfram Research (2025), Failsafe, Wolfram言語関数, https://reference.wolfram.com/language/ref/Failsafe.html.
CMS
Wolfram Language. 2025. "Failsafe." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/Failsafe.html.
APA
Wolfram Language. (2025). Failsafe. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/Failsafe.html