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Version: 3.x

Use CSS-in-JS

linaria#

There is a common CSS-in-JS solution in the React community: styled-components。Unfortunately, however, styled-components uses the <style> tag to dynamically control styles, and there is no similar solution in mini program. But we can achieve the same functionality with linaria, linaria mainly provides the following features.

  • API that approximates styled-components
  • TypeScript support
  • Zero runtime

Using linaria is also very simple, first installing the dependencies via NPM:

$ npm i linaria

Next, configure babel.config.js in the project root directory:

babel.config.js
module.exports = {
presets: [
['taro', {
framework: 'react',
ts: true
}],
'linaria/babel' // Add to babel-preset
]
}

After that, configure config/index.js

config/index.js
const config = {
mini: {
webpackChain(chain, webpack) {
// linaria/loader options refer to https://github.com/callstack/linaria/blob/master/docs/BUNDLERS_INTEGRATION.md#webpack
chain.module
.rule('script')
.use('linariaLoader')
.loader('linaria/loader')
.options({
sourceMap: process.env.NODE_ENV !== 'production',
})
}
},
h5: {
webpackChain(chain, webpack) {
chain.module
.rule('script')
.use('linariaLoader')
.loader('linaria/loader')
.options({
sourceMap: process.env.NODE_ENV !== 'production',
})
}
}
}

Finally, create a new linaria.config.js in the root of the project

linaria.config.js
// linaria configuration details: https://github.com/callstack/linaria/blob/master/docs/CONFIGURATION.md#options
module.exports = {
rules: [
{
action: require("linaria/evaluators").shaker,
},
{
test: /node_modules[\/\\](?!@tarojs)/,
action: "ignore"
}
]
}

In the business code we can use it like this.

import React from 'react'
import { View } from '@tarojs/components'
import { styled } from 'linaria/react'
const Title = styled(View)`
color: ${props => props.color}
`;
const Index = () => {
return <Title color='red'>
Hello World!
</Title>
}
export default Index

Fower#

The community has another option FowerDocumentation