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rc-stream

v1.0.3

Published

```bash npm i rc-stream --save ```

Downloads

7

Readme

rc-stream

npm i rc-stream --save

直接使用 Stream

stream 接收任意 observable 数据源,handle 是对当前 Stream 数据源的处理函数,返回新的数据源。

如果 Stream 的子元素是普通组件,自动开启监听,并将数据源 map 的结果解构传递给子组件 props

<Stream stream={stream$} handle={stream => stream.map(data => ({ value: data }))}>
    <Input />
</Stream>

嵌套使用 Stream

如果 Stream 的子元素也是 Stream,会将自己 handle 输出的新数据源,作为子元素 stream 的输入。

所以,嵌套时只需要给最外层 Stream 传递 stream

<Stream stream={stream$} handle={stream => stream.map(data => data + 1)}>
  <Stream handle={stream => stream.map(data => ({ value: data }))}>
    <Input />
  </Stream>
</Stream>

封装 Stream

为了在可视化平台使用,我们建议通过 Stream.create 静态方法封装自己的 Stream,以屏蔽 handle 函数。

建议封装常用的数据流组件,通过巧妙的组合完成任意数据源转换需求。

const Plus = Stream.create(
  stream => stream.map(data => data + 1)
)

const MapToValue = Stream.create(
  stream => stream.map(data => ({ value: data }))
)

<Plus stream={stream$}>
  <MapToValue>
    <Input />
  </MapToValue>
</Plus>