Handbook
Glossary
digit? ( ch -- ? )
ASCII
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LETTER? ( ch -- ? )
Next:
printable? ( ch -- ? )
Vocabulary
ascii
Inputs
ch
a character
Outputs
?
a
boolean
Word description
Tests for an ASCII decimal digit character.
Definition
USING:
math.order
;
IN:
ascii
:
digit?
( ch -- ? )
48 57
between?
;
inline