Set data structure of Java in javascript/jQuery

Question

Is there any way to create Set data structure(Unique Collections) like java in javascript?

Answer 1

In modern browsers, I would use a Map using only the keys' methods. For example:

• New set: let mySet = new Map();
• Add element: mySet.set(element, 1)
• Remove element: mySet.delete(element)
• Contains element: mySet.has(element)

You can make your own wrapper if you don't want to see the Map implementation. This approach is how Java HashSet is implemented, it uses a HashMap and only uses the key methods.