Observablescan be classified into two main groups: hot and cold
Observables. Let's start with a cold
Observable. A useful analogy is watching a pre-recorded video, such as on Netflix. You press Play and the movie starts playing from the beginning. Someone else can start playing the same movie in their own home 25 minutes later.
Observable, which is more like a live performance. You attend a live band performance from the beginning, but someone else might be 25 minutes late to the show. The band will not start playing from the beginning and the latecomer must start watching the performance from where it is.
Observables. The example above is a cold
Observable, while the example that uses
valueChangeson our text field input is a hot