Invisible Hand of React Performance - Ivan Akulov | JSHeroes 2025

Описание: From React.createClass to PureComponent to hooks – React has changed a lot. Each of these changes was driven by a desire for better architecture. But under the hood, each of these changes also pushed us to write faster apps – often, without us even noticing that.

In this talk, let’s look at how React’s invisible hand has been making our apps faster over the past 10 years:

useEffect, and how it’s faster than componentDidMount
Batching, and how it improved from version 0.4 to 0.12 to 18
Suspense, and some of the less obvious effects of using it
and possibly more