Programming

context

通过 独立变量 做 context 值容器，提供一个 provide 来输入，consume 来输出

const GlobalState = {
  context: [],
}
export const createEffectContext = <T = any>(defaultValue?: T) => {
  let index: number
  return {
    provide(value?: T) {
      index = GlobalState.context.length
      GlobalState.context[index] = isValid(value) ? value : defaultValue
    },
    consume(): T {
      return GlobalState.context[index]
    },
  }
}