The add() method adds a given element to a set. If the element is already present, it doesn't add any element.
Example
Syntax of Set add()
The syntax of add() method is:
set.add(elem)
add() method doesn't add an element to the set if it's already present in it.
Also, you don't get back a set if you use add() method when creating a set object.
noneValue = set().add(elem)
The above statement doesn't return a reference to the set but 'None', because the statement returns the return type of add which is None.
Set add() Parameters
add() method takes a single parameter:
- elem - the element that is added to the set
Return Value from Set add()
add() method doesn't return any value and returns None.
Example 1: Add an element to a set
Output
Vowels are: {'a', 'i', 'o', 'u', 'e'}
Vowels are: {'a', 'i', 'o', 'u', 'e'}
Note: Order of the vowels can be different.
Example 2: Add tuple to a set
Output
Vowels are: {('i', 'o'), 'e', 'u', 'a'}
Vowels are: {('i', 'o'), 'e', 'u', 'a'}
You can also add tuples to a set. And like normal elements, you can add the same tuple only once.