Python string Method - isdecimal()-IGI

The isdecimal() method is a built-in Python string method that returns a boolean value indicating whether all the characters in the string are decimal characters (i.e., characters used to represent numbers in base 10).

Here's an example that demonstrates the usage of the isdecimal() method:

refer to‮gi:‬iftidea.com

string1 = "123"
string2 = "123.45"

print(string1.isdecimal())  # Output: True
print(string2.isdecimal())  # Output: False

In this example, we create two strings: string1 which contains only decimal characters, and string2 which contains a non-decimal character (a decimal point). We then call the isdecimal() method on each string. The method returns True for string1 since all its characters are decimal characters, and False for string2 since it contains a non-decimal character.

The isdecimal() method returns True if the string is not empty and all its characters are decimal characters, and False otherwise. Here are some additional examples:

print("".isdecimal())  # Output: False
print("123ABC".isdecimal())  # Output: False
print("１２３".isdecimal())  # Output: True

In the first example, we call the isdecimal() method on an empty string, which returns False since the string is not decimal. In the second example, we call the method on a string containing non-decimal characters, which returns False. In the third example, we call the method on a string containing Unicode decimal characters (i.e., full-width digits), which returns True. Note that the isdecimal() method only recognizes characters in the ASCII range as decimal characters; full-width digits are recognized as decimal characters by isdecimal() but not by isdigit().

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Python string Method - isdecimal()