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LetterQ
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DigitQ
DigitQ
[
string
]
yields
True
if all the characters in the string are digits in the range
0
through
9
, and yields
False
otherwise.
EXAMPLES
CLOSE ALL
Basic Examples
(1)
Test whether a character is a digit:
In[1]:=
Out[1]=
In[2]:=
Out[2]=
Scope
(1)
Properties & Relations
(1)
SEE ALSO
LetterQ
Number
StringExpression
TUTORIALS
Characters in Strings
MORE ABOUT
Character Operations
Testing Expressions
New in 2
© 2008 Wolfram Research, Inc.
EXAMPLES
Basic Examples 
Scope 