In React, a component will update whenever state is updated. So all we need to make an update happen is call a setState with a new value. Simplest way to do this is flip a boolean.

const useForceUpdate = () => {
  const [, setState] = React.useState(true)
  const forceUpdate = React.useCallback(() => {
    setState(s => !s)
  }, [])

  return forceUpdate

This can be useful when using useRef. Changes to refs won’t trigger a component to update. Calling forceUpdate after setting a ref may be the trick you’re looking for.

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Kyle Shevlin is a software engineer who specializes in JavaScript, TypeScript, React and frontend web development.
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