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Idioms
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Idiom # 221: Remove all non-digits characters
Idiom # 221: Remove all non-digits characters
See
programming-idioms.org
:
Code
t := s.as_codepoints .filter (cp -> "0" <= cp <= "9") .as_string ""
What are effects?
Running Example
ex221 is s := "Create string t from string s, keeping only digit characters 0, 1, 2, 3, 4, 5, 6, 7, 8, 9." t := s.as_codepoints .filter (cp -> "0" <= cp <= "9") .as_string "" say t
What are effects?
last changed: 2024-07-01
next: Idiom # 222: Find first index of an element in list
