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react-height

Component-wrapper to determine and report children elements height

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3.6K

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172

Maintenance

Last Commit

4mos ago

Contributors

9

Package

Dependencies

1

License

MIT

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react-height npm

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Component-wrapper to determine and report children elements height

React Height

Goals

  • react-height keeps things simple, therefore it does not support nested height change, it only checks immediate children change
  • not based on specific browser APIs, so can be used in other environments too

Live design system demo

https://www.jinno.io/app/21/

Simple web demo

https://nkbt.github.io/react-height

Codepen demo

https://codepen.io/nkbt/pen/NGzgGb

Installation

NPM

npm install --save react-height

yarn

yarn add react-height

1998 Script Tag:

<script src="https://unpkg.com/react/umd/react.production.min.js"></script>
<script src="https://unpkg.com/react-height/build/react-height.js"></script>
(Module exposed as `ReactHeight`)

Usage

import {ReactHeight} from 'react-height';

<ReactHeight onHeightReady={height => console.log(height)}>
  <div>Random content</div>
</ReactHeight>

Options

onHeightReady: PropTypes.func.isRequired

Callback, invoked when height is measured (and when it is changed).

getElementHeight: PropTypes.func

Function to measure your element. It receives the element as argument and defaults to el => el.clientHeight.

children: PropTypes.node.isRequired

One or multiple children with static, variable or dynamic height.

<ReactHeight onHeightReady={height => console.log(height)}>
  <p>Paragraph of text</p>
  <p>Another paragraph is also OK</p>
  <p>Images and any other content are ok too</p>
  <img src="nyancat.gif" />
</ReactHeight>

hidden: PropTypes.bool (default: false)

ReactHeight can render to null as soon as height is measured.

<ReactHeight hidden={true} onHeightReady={height => console.log(height)}>
  <div>Will be removed from the DOM when height is measured</div>
</ReactHeight>

Pass-through props

All other props are applied to a container that is being measured. So it is possible to pass style or className, for example.

<ReactHeight onHeightReady={height => console.log(height)}
  style={{width: 200, border: '1px solid red'}}
  className="myComponent">

  <div>
    Wrapper around this element will have red border, 200px width
    and `class="myComponent"`
  </div>
</ReactHeight>

Development and testing

Currently is being developed and tested with the latest stable Node on OSX.

To run example covering all ReactHeight features, use yarn start, which will compile example/index.js

git clone git@github.com:nkbt/react-height.git
cd react-height
yarn install
yarn start

# then
open http://localhost:8080

Tests

# to run ESLint check
yarn lint

# to run tests
yarn test

License

MIT

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