10 tips for tuning React UI performance

React remains the most popular JavaScript framework. This article covers the latest tips on wringing the most performance from the React framework, including functional components and the Suspense feature.

React works by maintaining an in-memory model of the view (often called a virtual DOM) that is used to determine if and when the actual DOM should be updated. Manipulating the actual DOM is expensive, so many performance improvements revolve around ensuring that changes to the DOM occur only when absolutely necessary.

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