How to check if a string is a number in Python
In this post we will give you information about How to check if a string is a number in Python. Hear we will give you detail about How to check if a string is a number in PythonAnd how to use it also give you demo for it if it is necessary.
we are going to learn about how to check if a given string is a number in Python.
Consider, we have the following string:
age = "16"
Now, we need to check if the above string contains a number or not.
Using isdigit() method
To check if a string is a number or not, we can use the built-in isdigit() method in Python.
The isdigit() method returns true if a given string is a number; otherwise, it returns false.
Here is an example:
age = "16"result = age.isdigit()print(result)
Output:
True
Using isnumeric() method
Similarly, we can also use the isnumeric() method in python, to check if a string is a number.
The isnumeric() method returns true if all characters in a string is numeric (0-9) otherwise it returns false.
Here is an example:
age = "16"result = age.isnumeric()print(result)
Output:
True
Note: For negative numbers, the above methods won’t work.
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