python - Does "\d" in regex mean a digit? - Stack Overflow
123 Only 1 and 3 are matched by the regex \d; 2 is not. Generally for a sequence of digit numbers without other characters in between, only the odd order digits are matches, and the even order digits …
What's the difference between str.isdigit (), isnumeric () and ...
s.isdigit() s.isnumeric() s.isdecimal() I always get as output either all True or all False for each value of s (which is a string). What's the difference between the three? Can you provide an example that gives …
math - C: how to break apart a multi digit number into separate ...
Feb 3, 2018 · Say I have a multi-digit integer in C. I want to break it up into single-digit integers. 123 would turn into 1, 2, and 3. How can I do this, especially if I don't know how many digits the integer...
How to take the nth digit of a number in python - Stack Overflow
Sep 23, 2016 · This solution solves many more "digit of a number" problems than the one using integer division and modulus. Try to find the leading (left-most) digit of the following numbers using both: …
regex - Grep regular expression for digits in character string of ...
I need some way to find words that contain any combination of characters and digits but exactly 4 digits only, and at least one character. EXAMPLE: a1a1a1a1 // Match 1234 // NO ...
gcc - Digit separator for literals in C - Stack Overflow
I have just changed to using the GCC compiler instead, which does not allow these digit-separators and throws an error, when I use them. I assume the reason is because, Visual Studio uses the same …
c# - Format string to a 3 digit number - Stack Overflow
Mar 27, 2019 · 169 If you're just formatting a number, you can just provide the proper custom numeric format to make it a 3 digit string directly:
R regular expressions: unexpected behavior of " [:digit:]"
Nov 1, 2013 · I'd like to extract elements beginning with digits from a character vector but there's something about POSIX regular expression syntax that I don't understand. I would think that vec <- …
Notepad++ find and replace number, digit format - Stack Overflow
Dec 13, 2013 · I have single and two digit number, and I want to make it 4 digits. So "1" become "0001", "22" become "0022" How do I do that?
Difference between Char.IsDigit() and Char.IsNumber() in C#
Oct 23, 2008 · This contrasts with IsDigit, which determines if a Char is a radix-10 digit. Valid numbers are members of the following categories in UnicodeCategory: DecimalDigitNumber Decimal digit …