1.3.5 • Published 4 years ago

oo-graphql-service v1.3.5

Weekly downloads
1
License
ISC
Repository
github
Last release
4 years ago

问题 - 继承GraphqlStore的store类,成员变量未初始化

  • 问题表现
//this.allList is undefined
return this.allList.find(...);
  • 解决方法:修改.babelrclegacyloose两个配置必须加上
{
  "presets": [
    "@babel/env"
  ],
  "plugins": [
    ["@babel/plugin-proposal-decorators", { "legacy": true }],
    ["@babel/plugin-proposal-class-properties", { "loose" : true }]
  ]
}

优化 - 使用Object.assign

{
  "presets": [],
  "plugins": [
    ["@babel/plugin-proposal-object-rest-spread", { "loose": true, "useBuiltIns": false }]
  ]
}

转为typescript,.babelrc备份

{
  "presets": [
    "@babel/env"
  ],
  "plugins": [
    ["@babel/plugin-proposal-decorators", { "legacy": true }],
    ["@babel/plugin-proposal-class-properties", { "loose" : true }],
    ["@babel/plugin-proposal-object-rest-spread", { "loose": true, "useBuiltIns": false }]
  ]
}

mobx在taro中的限制

  • 只有在react控件的render中将store对应的属性保存到本地变量,该属性修改时,mobx才会通知observer控件
  • 以上的原理是:render中的本地变量,taro会处理到state
  • 下面代码中:目前的taro-mobx只会监控currentItem, message,不会监控这些属性下级的变化

    const {manager: {currentItem, message}} = this.props;
    • 无监控:message.text='xxx'
    • 有监控:message={...}
  • 下面代码中:没有设置currentItem本地变量,mobx不会更新视图

    <View>{this.props.reserve.currentItem.name}</View>
      
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