How React useThrottle Hooks Prevent Render Overload from High-Frequency Events

High-frequency browser events like scroll and mousemove can trigger dozens of re-renders or network requests per second in React apps, straining both the UI and backend. Throttling — limiting execution to once every N milliseconds — is better suited than debouncing for these cases, as debouncing delays updates until events stop. The useThrottle and useThrottleFn hooks from @reactuses/core address this by throttling values and callbacks respectively, built on lodash's throttle utility. They are designed to avoid common React pitfalls such as stale closures and timers that outlive a component. useThrottleFn also exposes cancel and flush controls, allowing developers to discard or immediately execute pending calls when needed.