Redux、React 状态更新和重新渲染组件
[英]Redux, React state update and re-render component
问题描述
- How exactly re-rendering of the components happen if there is a new state object returned from the redux reducer..?
如果 redux reducer 返回了一个新的 state 对象，组件的重新渲染究竟是如何发生的？ - Are there any optimisation techniques used by react to minimalize the rendering of components ..? react 是否使用任何优化技术来最小化组件的渲染..？
1 个解决方案
解决方案1
0 已采纳 2020-08-30 07:38:22
When you connect a component to the redux store, and you map the redux state to props, if a state changes into a new state, the component re-renders.当您将组件连接到 redux 存储，并将 redux 状态映射到 props 时，如果状态更改为新状态，则组件会重新渲染。 Just like when you pass a state to a child component and that state changes.就像您将状态传递给子组件并且该状态发生变化时一样。
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