![]() ![]() ![]() These principles make your components easier to debug and understand, so it’s good to follow them in any case. If a specific interaction still feels laggy, use the React Developer Tools profiler to see which components would benefit the most from memoization, and add memoization where needed. For example, instead of memoization, it’s often simpler to move some object or a function inside an Effect or outside the component. Try to remove unnecessary dependencies from your Effects.Most performance problems in React apps are caused by chains of updates originating from Effects that cause your components to render over and over. Avoid unnecessary Effects that update state.If re-rendering a component causes a problem or produces some noticeable visual artifact, it’s a bug in your component! Fix the bug instead of adding memoization. For example, don’t keep transient state like forms and whether an item is hovered at the top of your tree or in a global state library. Prefer local state and don’t lift state up any further than necessary. ![]() This way, when the wrapper component updates its own state, React knows that its children don’t need to re-render.
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