用高阶组件去实现功能开关

使用高阶组件去实现我们的toggle, 从而实现组件的多样性.

比如下面的例子, 实现某个功能的开/关

// featureToggle.js
const isFeatureOn = function (featureName) {
  // return true or false
};

import { isFeatureOn } from './featureToggle';

const toggleOn = (featureName, ComposedComponent) => class HOC extends Component {
  render() {
    return isFeatureOn(featureName) ? <ComposedComponent {...this.props} /> : null;
  }
};

// 用法
import AdsComponent from './Ads'
const Ads = toggleOn('ads', AdsComponent);