← React Intermediate Questions - Set 12 Q117

How can you measure performance in a React application?

React Intermediate Questions - Set 12

Example

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<Profiler id="List" onRender={(id, phase, ms) => console.log(id, phase, ms)}>
  <List />
</Profiler>

What to notice

• Combine with the Profiler tab and Lighthouse; measure before optimising anything.