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@use-it/prev-prop\n[![npm version](https://badge.fury.io/js/%40use-it%2Fprev-prop.svg)](https://badge.fury.io/js/%40use-it%2Fprev-prop)\n[![All Contributors](https://img.shields.io/badge/all_contributors-3-orange.svg?style=flat-square)](#contributors)\n\nA custom React Hook that maintains a previous value for a prop (or any other value).\nBased on [a tweet](https://twitter.com/chrisachard/status/1177308524877144065)\nby [Chris Achard](https://github.com/chrisachard).\n\n## Installation\n\n```bash\n$ npm i @use-it/prev-prop\n```\n\nor\n\n```bash\n$ yarn add @use-it/prev-prop\n```\n\n## Usage\n\nHere is a basic setup.\n\n```js\nconst previousProp = usePrevProp(prop);\n```\n\n### Parameters\n\nHere are the parameters that you can use.\n\n| Parameter  | Description                                                                      |\n| :--------- | :------------------------------------------------------------------------------- |\n| `prop` | The current prop |\n\n### Return\n\nThis hook returns the previous value of the prop. Initially, this value will be `undefined`.\n\n## Example\n\nLet's look at some sample code. Here is a `Count` component that displays the count and the previous count.\n\n```js\nimport React from 'react';\nimport usePrevProp from '@use-it/prev-prop';\n\nconst Count = ({ count }) =\u003e {\n  const prevCount = usePrevProp(count);\n\n  return (\n    \u003cdiv\u003e\n      \u003cdiv\u003eCurrent Count: {count}\u003c/div\u003e\n      \u003cdiv\u003ePrev Count: {prevCount}\u003c/div\u003e\n    \u003c/div\u003e\n  );\n};\n\nexport default Count;\n```\n\n## License\n\n**[MIT](LICENSE)** Licensed\n\n## Contributors ✨\n\nThanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):\n\n\u003c!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section --\u003e\n\u003c!-- prettier-ignore --\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n    \u003ctd align=\"center\"\u003e\u003ca href=\"https://donavon.com\"\u003e\u003cimg src=\"https://avatars3.githubusercontent.com/u/887639?v=4\" width=\"100px;\" alt=\"Donavon West\"/\u003e\u003cbr /\u003e\u003csub\u003e\u003cb\u003eDonavon West\u003c/b\u003e\u003c/sub\u003e\u003c/a\u003e\u003cbr /\u003e\u003ca href=\"#infra-donavon\" title=\"Infrastructure (Hosting, Build-Tools, etc)\"\u003e🚇\u003c/a\u003e \u003ca href=\"https://github.com/donavon/use-prev-prop/commits?author=donavon\" title=\"Tests\"\u003e⚠️\u003c/a\u003e \u003ca href=\"#example-donavon\" title=\"Examples\"\u003e💡\u003c/a\u003e \u003ca href=\"#ideas-donavon\" title=\"Ideas, Planning, \u0026 Feedback\"\u003e🤔\u003c/a\u003e \u003ca href=\"#maintenance-donavon\" title=\"Maintenance\"\u003e🚧\u003c/a\u003e \u003ca href=\"#review-donavon\" title=\"Reviewed Pull Requests\"\u003e👀\u003c/a\u003e \u003ca href=\"#tool-donavon\" title=\"Tools\"\u003e🔧\u003c/a\u003e \u003ca href=\"https://github.com/donavon/use-prev-prop/commits?author=donavon\" title=\"Code\"\u003e💻\u003c/a\u003e\u003c/td\u003e\n    \u003ctd align=\"center\"\u003e\u003ca href=\"https://github.com/chrisachard\"\u003e\u003cimg src=\"https://avatars2.githubusercontent.com/u/34973?v=4\" width=\"100px;\" alt=\"chrisachard\"/\u003e\u003cbr /\u003e\u003csub\u003e\u003cb\u003echrisachard\u003c/b\u003e\u003c/sub\u003e\u003c/a\u003e\u003cbr /\u003e\u003ca href=\"#ideas-chrisachard\" title=\"Ideas, Planning, \u0026 Feedback\"\u003e🤔\u003c/a\u003e\u003c/td\u003e\n    \u003ctd align=\"center\"\u003e\u003ca href=\"http://lemol.github.io\"\u003e\u003cimg src=\"https://avatars2.githubusercontent.com/u/1035379?v=4\" width=\"100px;\" alt=\"Leza Morais Lutonda\"/\u003e\u003cbr /\u003e\u003csub\u003e\u003cb\u003eLeza Morais Lutonda\u003c/b\u003e\u003c/sub\u003e\u003c/a\u003e\u003cbr /\u003e\u003ca href=\"https://github.com/donavon/use-prev-prop/commits?author=lemol\" title=\"Code\"\u003e💻\u003c/a\u003e\u003c/td\u003e\n  \u003c/tr\u003e\n\u003c/table\u003e\n\n\u003c!-- ALL-CONTRIBUTORS-LIST:END --\u003e\n\nThis project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdonavon%2Fuse-prev-prop","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdonavon%2Fuse-prev-prop","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdonavon%2Fuse-prev-prop/lists"}