useWillUnmount

About

componentWillUnmount lifecycle as hook for React.

Installation

npm install --save rooks

Importing the hook

import { useWillUnmount } from '@rooks';

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.

Codesandbox Example

Basic usage

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