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Python String | isdecimal() method with Examples

Python String isdecimal() method with Examples on capitalize(), center(), count(), encode(), find(), format(), index(), join(), lower(), ljust(), isupper(), istitle(), isspace(), isprintable(), isnumeric(), islower() etc.

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Python String isdecimal() Method

Python isdecimal() method checks whether all the characters in the string are decimal or not. Decimal characters are those have base 10.

This method returns boolean either true or false.

Signature

isdecimal()

Parameters

No parameter is required.

Return

It returns either True or False.

Let's see some examples of isdecimal() method to understand it's functionalities.

Python String isdecimal() Method Example 1

A simple example of isdecimal() method to check whether the string contains decimal value.

# Python isdecimal() method example
# Variable declaration
str = "TheDeveloperBlog"
# Calling function
str2 = str.isdecimal()
# Displaying result
print(str2)

Output:

False

Python String isdecimal() Method Example 2

Let's try to check floating value and see the outcome. It will return False if string is not decimal.

# 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:

True
False

Python String isdecimal() Method Example 3

Here, we are checking special chars also.

# 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:

True
False

Next TopicPython Strings




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