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react16 的一个问题，，困扰

  •   
  •   lucky2javascript · Oct 5, 2018 via Android · 2361 views
    This topic created in 2956 days ago, the information mentioned may be changed or developed.

    一个组件的 props 改变了，怎么触发这个组件更新

  • 组件
  • props
  • react16
  • 触发
    3 replies  •  2018-10-06 09:09:16 +08:00
    issuz
    issuz
    Oct 5, 2018 via iPhone❤️1
    1
    react 的生命周期了解下？
    vHypnos
    vHypnos
    Oct 6, 2018
    2
    componentWillReceiveProps(nextProps) {
    ...
    }
    hvsy
    hvsy
    Oct 6, 2018 via Android
    3
    getDerivedStateFromProps
    通过这个函数来的返回值来决定是不是要更新
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