Kyle Shevlin • 8/30/2021

Prefer Function Updaters in State Setters

This React-focused article discusses a common state management scenario: toggling selection of an item. It compares two approaches—one relying on a state variable in scope (requiring unnecessary dependencies) and a superior method using a function updater within setState. The function updater avoids dependency arrays, prevents unnecessary re-renders, and reduces bugs by ensuring the update uses the latest state.

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#React #usestate #state management