Action
Tests whether the first character of a string is a digit.
Syntax
bTest = IsDigit(sString)
Variable
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Description
|
bTest |
TRUE if the character is a digit. BOOLEAN.
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sString
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The string to test. STRING.
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Notes
IsDigit returns TRUE if the first character of sString is a digit (0 through 9);
otherwise it returns FALSE.
IsDigit emulates the application of the C library function
iswdigit on the first character of a specified string.
Example
Print(IsDigit("123")) // prints: TRUE
Print(IsDigit("hello")) // prints: FALSE