- isalnum() is a python in-build function which is operate on string data type.
- stands for is alphabet numeric.
- it will return True if string contain any numeric value while it will return False if string don't contain any numeric value.
Example
string is "number123"
it will return True
string is "number"
it will return False
program-
s="text"
print(s.isalnum())
s="text123"
print(s.isalnum())
s="text 123"
print(s.isalnum())
s="123"
print(s.isalnum())
s="TEXT456"
print(s.isalnum())
s="This is string and number 123 with space"
print(s.isalnum())
s="123text"
print(s.isalnum())
True
True
False
True
True
False
True