javascript - How can I use Chrome Dev Tools timeline to find out which react components are updating? -


i have implemented react-dates in react/redux app have nice calendar, getting serious performance problems, , can't indagate.

i have used example component of repo not linked components state or redux store.

every time hover on day on calendar, triggers whole mess:

enter image description here

being picker totally isolated application, think updates triggers should on components itself. lags tremendously, , watching stack on timeline, seems me there lot of more actors involved.

i not big expert of js perf analysis need help, how can understand components being updated?

update: used react dev tools highlight components updating, , seems calendar updating. cannot understand why same component in demo has no problem , in context of app lags much


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