…about detecting changes in TalkCmp. If no inputs change, no need to check the component’s template. In addition to depending on immutable inputs OnPush components can also have local mutable state.Essential Angular: Change Detection2244Victor SavkinMatthew HarwoodFollowAug 23, 2017 · 1 min readHow do you have local mutatable state? Is this in the full book. Will buy tonight!