react-flex

Flex component built for React

Install

$ npm i react-flex --save

Usage

import { Flex, Item } from 'react-flex';
import 'react-flex/index.css';

<Flex row alignItems="center">
  <div>a first div</div>
  <Item flex={1}>flexes to 1</Item>
</Flex>

DONT FORGET to import react-flex/index.css as well.

Motivation

Ideally, we could write <div style={{flex: 1}} />, but the browser landscape has to catch up with prefixing, latest syntax, etc.

So instead, <Item flex={2} /> adds a className on the rendered item. Since you are also importing react-flex/index.css, you get a all the cross-browser syntax and prefixing that autoprefixer offers.

Props

There are two components in the react-flex module: Flex and Item. They both support flex as a prop.

Flex

• inline: Boolean - for display: inline-flex.
• row: Boolean - for flex-direction: row. Defaults to true
• column: Boolean - for flex-direction: column
• reverse: Boolean - for reverse direction (eg. flex-direction: column-reverse or row-reverse)
• wrap: Boolean - for flex-wrap: wrap. Defaults to true.
• flex: Number/String/Boolean - a number/string from 0 to 24 for the flex css property. false for none.
• alignItems: String - a value for the align-items css property.
• justifyContent: String - a value for the justify-content css property.
• alignContent: String - a value for the align-content css property.
• display: String - you can customize the display to be 'flex' or 'inline-flex'

The Flex component has the following default props (which Item does not):

• row=true
• wrap=true
• `alignItems='center'
• display='flex'

Our experience shows those are the most common configs, so we made them the defaults.

Item

• any of the above
• flex: Number/String/Boolean - a number/string from 0 to 24 for the flex css property. false for none. Defaults to 1.
• flexGrow: Number/Boolean/String - a number/string from 0 to 24 for flex-grow. Most of the times, using flex is just enough.
• flexShrink: Number/String - a value for the flex-shrink css property. From 0 to 24.
• flexBasis: String - a value for the flex-basis css property. Valid values are: 0 (and 'none', which is the same), 'auto', 'content', 'fit-content', 'min-content', 'max-content', 'fit'.

Examples

<Flex alignItems="start"> //or "flex-start"
  <Item flex={2}>
    content here
  </Item>
</Flex>

<Flex column wrap={false}>
  <Flex flex={false}>
    Flex also supports the `flex` prop
  </Flex>
  <Item flex={3} />
  <Item flex={12} />
</Flex>

Development

$ git clone https://github.com/zippyui/react-flex.git
$ npm i
$ npm run dev

Changelog

New in 2.0.1

• Add support for alignSelf

New in 2.0.0

• Add support for React 15.0.0 in peerDependecies
• Modify class names - remove all react-flex-item classes & add BEM convention
• Add display prop to Flex & Item. In this way, you can make even flex Item have display flex or inline-flex
• Make scss variable $REACT-FLEX_MAX-SIZE take previously defined value if one exists.

Other

If you wish to use index.scss, you can import that directly.

Now navigate to http://localhost:8181/dev.html, modify index.jsx and see the changes happen live in the browser.

License

MIT