Web Reference: Aug 16, 2022 · In this tutorial, we're going to build a mental model for when and why React re-renders. We'll also learn how to tell why a specific component re-rendered, using the React devtools. This tutorial is written to help beginner-intermediate React developers get more comfortable with React. Mar 28, 2019 · Adding this snippet to your component can help reveal the culprit causing questionable re-renders, and many times this helps shed light on unnecessary data being piped into components. Feb 8, 2022 · There are four reasons why a component would re-render itself: state changes, parent (or children) re-renders, context changes, and hooks changes. There is also a big myth: that re-renders happen when the component’s props change.
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