@rooks/use-will-unmount

@rooks/use-will-unmount

Note: Future updates to this package have moved to the main package rooks. All hooks now reside in a single package which you can install using

npm install rooks

or

yarn add rooks

Rooks is completely treeshakeable and if you use only 1 of the 50+ hooks in the package, only that hook will be bundled with your code. Your bundle will only contain the hooks that you need. Cheers!

About

componentWillUnmount lifecycle as hook for React.

Installation

npm install --save @rooks/use-will-unmount

Importing the hook

import useWillUnmount from "@rooks/use-will-unmount"

Usage

function Message(){

  useWillUnmount(function () {
    alert("unmounted")
  })
  return <p> Message </p>
}


function Demo() {
  const [
    value,
    changeValue
   ] = useState(true);

  function toggleValue(){
    changeValue(!value)
  }

  return <>
    <p><button onClick={toggleValue}>Toggle show </button></p>
    {value && <Message/>}
  </>;
}

render(<Demo/>)

Arguments

Arguments	Type	Description	Default value
callback	function	Callback function which needs to run on unmount	undefined

A React hook for componentWillUnmount lifecycle method.