Better implementation of render props
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- JavaScript
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描述
This page https://reactjs.org/docs/render-props.html introduces the "render props" pattern with a class Mouse. Its implementation is
render() {
return (
<div>
<h1>Move the mouse around! 1</h1>
<Mouse render={mouse => <Cat mouse={mouse} />} />
</div>
);
}
And its usage is
<Mouse render={mouse => <Cat mouse={mouse} />} />
I find that if we implement it as
render() {
const { render: Render } = this.props;
return (
<div
style={{ height: 100, border: "1px solid" }}
onMouseMove={this.handleMouseMove}
>
<Render mouse={this.state} />
</div>
);
}
Then we can allow the following usage patterns:
<Mouse render={({ mouse }) => <Cat mouse={mouse} />} /> // the original Cat class, 1st pattern
<Mouse render={MediumCat} /> // MediumCat is a function component, 2nd pattern
<Mouse render={BigCat} /> // BigCat is a class component, 3rd pattern
With this implementation, we have a pattern (the first one) which is almost the same as the original render props. Also it allows another two usage patterns (actually the 1st and 2nd patterns are the same).
I have created a codesandbox demo. In the demo, MouseTracker1 is the same as documented while MouseTracker2 is different in implementation of Mouse as I suggested.
I wonder if this is a better implementation of "render props". Any thought?
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调研方向
从 issue 中链接的 render-props 页面及其配套的 CodeSandbox 演示开始。将文档中记录的 Mouse 实现与提议的变体进行比较;完成的标准是由 maintainer 决定是否应修改文档,并就任何更新的范围达成一致。
由索引模型根据 Issue 内容生成。
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- 技术栈
- javascript, react
- 领域
- documentation
- Issue 类型
- 文档
- 难度
- 5/5
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- 一周以上
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- 需要澄清
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- 20/100