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Fuzion
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Idioms
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Idiom # 137: Check if string contains only digits
Idiom # 137: Check if string contains only digits
See
programming-idioms.org
:
Code
Code input
s := "012345689" b := s.codepoints ∀ (.is_ascii_digit)
What are effects?
Runnable Example
Code input
ex137 is s1 := "012345689" b1 := s1.codepoints ∀ (.is_ascii_digit) say b1 s2 := "a012345689" b2 := s2.codepoints ∀ (.is_ascii_digit) say b2
What are effects?
last changed: 2026-02-20
next: NYI: Idiom # 138: Create temp file
