set()
Definition
A set is a collection of unique elements with no specific order. It does not allow duplicate values.
Analogy
Imagine you have a box where you can only put in one of each item. If you try to put the same item twice, it won't fit because the box only allows unique items.
Related terms
add(): This method adds an element to the set if it is not already present.
contains(): This method checks if a specific element is present in the set.
size(): This method returns the number of elements in the set.
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