I've never deep-dived into that but it's possible to declare components as pure. In that case, as least in theory, React is able to only perform the absolute mi

I've never deep-dived into that but it's possible to declare components as pure. In that case, as least in theory, React is able to only perform the absolute minimum amount of operations. [1] On the other hand, about binding, the worst-case scenario is that after an update onclick handlers stop working or memory leaks start emerging. It's easy to run into these problems when working for instance with older Frameworks like Backbone.js, which register click handlers procedurally but don't manage the bindings - automatically - during the whole life cycle. Also I've observed such problems with one of the minimalistic React clones, I think it was Preact or Inferno. [1] https://medium.com/@esamatti/react-js-pure-render-performance-anti-pattern-fb88c101332f https://medium.com/@esamatti/react-js-pure-render-performanc...