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babel-plugin-vue-like-for-react-and-mobx

v1.1.0

Published

给React增加VUE类似的功能(使用mobx)

Readme

babel-plugin-vue-like-for-react-and-mobx

给React增加VUE类似的功能(使用mobx)

使用示例

@observer
class MyComponent extends React.Component {

  static propTypes = {
    interest: PropTypes.String,
  };

  @observable
  formData = {
    name: '',
    age: '',
  };

  render() {
    <div>
      <div>Name: <input v-model="formData.name" /></div>
      <div>Age: <input v-model="formData.age" /></div>
      <div>
        Interest:
        <select v-model="props.interest">
          <option>None</option>
          <option value="1">Music</option>
          <option value="2">Movie</option>
        </select>
      </div>
    </div>
  }
}

原理

v-model 其实就是一个语法糖,在编译阶段进行了静态代码转换。如下:

// Before
<Node v-mode="x.y" />

// After
<Node
  value={getVModelValue(this, "x.y")}
  onChange={e => handleSetVModelEvent(this, "x.y", e)}
/>

编译后的代码中,用到的两个方法: getVModelValuehandleSetVModelEvent 的实现,可以参考 vmodel.js

使用方法

  1. 安装: npm i --save babel-plugin-vue-like-for-react-and-mobx
  2. 配置webpack
{
  ...
  module: {
    rules: [
      test: /\.js$/,
      ...
      use: {
        loader: 'babel-loader',
        options: {
          presets: [...],
          plugins: [
            'vue-like-for-react-and-mobx', // 这是关键,最好放在第一个
            ...
          ]
        }
      }
    ]
  }
}

不足

现在还些不支持或者不好的地方:

  1. 调试不够友好:如果转换出的代码出现问题了,现在还跟踪不了执行过程。不过代码比较简单,一般不会出问题。
  2. 验证不全:因为v-model会转换生成 valueonChange ,如果原来这个节点上就有这两个属性就会冲突。原则上应该在编译阶段报错,但是现在还没有支持,后续会支持