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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.
EXAMPLESCLOSE ALL
Basic Examples   (1)
Test whether a character is a digit:
Test whether a character is a digit:
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Out[1]=
In[2]:=
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Scope   (1)
Test whether all characters in a string are digits:
Properties & Relations   (1)
Only ordinary digit characters are treated as digits:
New in 2
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