The isnumeric() function is a method in Python that is used to check whether all the characters in a string are numeric digits (0-9). It returns True if all characters are numeric, and False otherwise.
Parameter Values
This function does not accept any parameters.Return Values
The isnumeric() method returns a bool, either True or False.
How to Use isnumeric() in Python
Example 1:
The isnumeric() method returns True if all characters in the string are numeric (0-9) and there is at least one character, otherwise it returns False.
text = '12345'
print(text.isnumeric())
Example 2:
The isnumeric() method returns False if the string contains any non-numeric characters such as spaces or special symbols.
text = '12 345'
print(text.isnumeric())
Example 3:
The isnumeric() method handles negative numbers correctly, returning False if the string starts with a negative sign.
text = '-123'
print(text.isnumeric())