string.isdigit()

## Parameter Values :

The isdigit() doesn't take any parameters.

#### Returns :

The isdigit() returns:

• True if all characters in the string are digits.
• False if at least one character is not a digit.

Sample Code :

1.
`string = "28212"print(string.isdigit())# contains alphabets and spacess = "Mo3 nicaG el l22er"print(string.isdigit())`
Output :
True
True

A digit is a character that has property value:

• Numeric_Type=Digit
• Numeric_Type=Decimal

In Python, superscript and subscripts (usually written using unicode) are also considered digit characters. Hence, if the string contains these characters along with decimal characters, isdigit() returns True.

The roman numerals, currency numerators and fractions (usually written using unicode) are considered numeric characters but not digits. The isdigit() returns False if the string contains these characters.

To check whether a character is numeric character or not, you can use isnumeric() method.

2.
`string = '23455'print(string.isdigit())#string = '%uFFFD3455'# subscript is a digits = '%uFFFD3455'print(string.isdigit())# string = '%uFFFD'# fraction is not a digits = '%uFFFD'print(string.isdigit())`
Output :
True
True
True

Hence,we can see above function isdigit() returns true if string contains only digits and false otherwise.

**********END OF ARTICLE **********

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