Adding values to JavaScript Sets is fundamental for building dynamic collections of unique elements during runtime. With over 25 years of experience in software development and as the creator of CoreUI, I’ve used Set addition operations extensively in UI component state management and data processing. From my expertise, the most straightforward approach is using the add() method which automatically ensures uniqueness and maintains insertion order. This method provides efficient collection building while preventing duplicate entries.

JavaScript Set objects provide an efficient way to store unique values and perform collection operations without duplicates. As the creator of CoreUI with over 25 years of JavaScript development experience, I’ve used Sets extensively for managing unique collections in UI components and data processing. From my expertise, the most effective approach is creating Sets with the new Set() constructor and using their built-in methods for adding, checking, and iterating values. Sets offer better performance than arrays for uniqueness checks and provide cleaner syntax for collection operations.