我们不仅需要定义函数,还要定义一个数组( [] )并调用 React.useCallback ,它本身会设置属性和运行逻辑表达式等。 因此,在这两种情况下,JavaScript ... ... <看更多>
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我们不仅需要定义函数,还要定义一个数组( [] )并调用 React.useCallback ,它本身会设置属性和运行逻辑表达式等。 因此,在这两种情况下,JavaScript ... ... <看更多>
Learn how to use the useCallback hook in React.Code: https://github.com/benawad/react-hooks-tutorial ... ... <看更多>
Edit. Following answer refers to the initial version of the OP's code in which handleClick was not passed as a prop to Child component. ... <看更多>
This is related to #14092, #14066, reactjs/rfcs#83, and some other issues. The problem is that we often want to avoid invalidating a ... ... <看更多>
This is related to #14092, #14066, reactjs/rfcs#83, and some other issues. The problem is that we often want to avoid invalidating a ... ... <看更多>