The isdecimal method in Python evaluates whether every character within a string is a decimal digit. Decimal digits are defined as those belonging to base 10.
This method returns boolean either true or false.
Syntax of Python String isdecimal Method
It has the following syntax:
Example
isdecimal()
Parameters
No parameter is required.
Return
It returns either True or False.
Different Examples for isdecimal Method in Python
Let us examine a few examples of the isdecimal method in order to gain insight into its capabilities.
Example 1
An illustrative example of the isdecimal function can be utilized to ascertain if a given string consists solely of decimal digits.
Example
# Python isdecimal() method example
# Variable declaration
str = "Example"
# Calling function
str2 = str.isdecimal()
# Displaying result
print(str2)
Output:
Example 2
Let's examine a floating-point value and observe the result. It will yield False if the string does not represent a decimal number.
Example
# Python isdecimal() method example
# Variable declaration
str = "123" # True
str3 = "2.50" # False
# Calling function
str2 = str.isdecimal()
str4 = str3.isdecimal()
# Displaying result
print(str2)
print(str4)
Output:
Output
True
False
Example 3
Here, we are checking special chars also.
Example
# Python isdecimal() method example
# Variable declaration
str = "123" # True
str3 = "@#$" # False
# Calling function
str2 = str.isdecimal()
str4 = str3.isdecimal()
# Displaying result
print(str2)
print(str4)
Output:
Output
True
False