Two way binding is back in, and almost all perf benchmarks out there of Angular 2 is much faster than React. It also avoids some of the internal flaws present i

Two way binding is back in, and almost all perf benchmarks out there of Angular 2 is much faster than React. It also avoids some of the internal flaws present in current React with the coupling of the DOM layer in the library. The two way binding works by automatically updating, but also allowing you to hook into the outputs through a template convention (if bound via [(foo)], one can define a fooChange handler to hook into updates).