Web Development

React Performance Engineering

Measure before you optimise. Profiling, render behaviour, concurrent features, and shipping less JavaScript.

Videos by Cosden Solutions, I Code It and 5 more

Advanced

2h 21m

4 modules

1 learner

What you’ll learn

Measure honestly
Use the profiler and field metrics to find the real bottleneck instead of the one you assumed.
Control re-renders
Understand why a component re-rendered and fix the cause rather than papering over it with memo.
Use concurrent features
Keep the interface responsive during expensive updates with transitions and deferred values.
Ship less JavaScript
Split, lazy load, and prefetch so the bundle stops being the first thing that hurts.

4 modules2h 21m

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