F.C.C. - Create Set Class

Below is a quick solution to the Create Set Class challenge provided by Free Code Camp. It’s a very simple challenge and I aim to learn more about sets in the future.

In the next few exercises, we will build a full featured Set from scratch.

this.add function should return true if the value is successfully added and false otherwise

My Solution:

    
        function Set() {
            // the var collection will hold our set
            var collection = [];
            // this method will check for the presence of an element and return true or false
            this.has = function(element) {
                return (collection.indexOf(element) !== -1);
            };
            // this method will return all the values in the set
            this.values = function() {
                return collection;
            };
            
            // This is the function that needed added
            // It's very simple!
            this.add = function(element) {
                if (!this.has(element)) {
                    collection.push(element);
                    return true;
                }
                return false;
            }
        }
    

Thanks for reading!