I was wondering how to use a new Set () javascript's object with Angular "new" Signals. As I've been a long time playing with it, I decided to post it in here. Just a simple adding and deleting. set = signal (new Set ()); // initialize as an empty set, no need the <Set> because it's implicit. toggleOptionFromSet (option: string) { // just a function to toggle an option in and out of a signal Set. if (this.set ().has (option)) { // if the set contains the value... this.set.update (set => { // deletes the option of the set. // you cannot return set.delete (option) because it returns a boolean and update needs to return a Set. set.delete (option) return set; }); console.log (this.set ()); // you see that the option has been erased. } else { // if the set () does not contain the option... this.set.update (set => set.add (option)); // this actually returns a new set, so, as you might know, you don't need to return it explicitly. console.log (this.set ()); // the option has been added to the set. } } Hope it helps someone! Continue reading...
