Check if a Substring Exists in a Given String
In this section, we will define a string and check whether a specified substring exists within the string.
Example
def check(string, sub_str):
if (string.find(sub_str) == -1):
print("Not found!")
else:
print("Found!")Code Example:
string = "www.runoob.com" sub_str = "runoob" check(string, sub_str)
Output:
Found!
In this example, the find() method is used to check if the substring is present in the given string. If the method returns -1, it indicates that the substring is not found, otherwise, it exists.
