Definition
If you use the update() method in your program, it adds more elements; if these elements are already present in the set, it does not add them and discards them.
Now you will clearly understand the method through the flowchart.
s = {11, 12}
========================
CASE 1: New Values
========================
update([13, 14])
13, 14
│
▼
{11, 12}
│
▼
{11, 12, 13, 14}
========================
CASE 2: Duplicate Values
========================
s = {11, 12, 13, 14}
update([13, 14])
13, 14
│
▼
{11, 12, 13, 14}
│
▼
NO CHANGE
{11, 12, 13, 14}
Syntax:
set_name.update(iterable)Example 1:
s = {11, 12}
s.update([13, 14])
print(s)Output:
Example 2:
s = {11, 12, 13, 14}
s.update([13, 14])
print(s)Output:
Exercise
Create a set s = {1, 2, 3} and remove 2 from it.