react 试用 useLocation 报错,Hooks can only be called inside of the body of a function component.
时间: 2024-04-28 14:25:27 浏览: 15
这个错误一般是因为在函数组件之外使用了Hooks。在你的代码中,可能是在函数组件之外使用了`useLocation`。你需要确保`useLocation`只在函数组件内调用。如果你需要在函数组件之外使用`useLocation`,你可以将它包装在另一个函数组件内,然后在这个函数组件中使用`useLocation`。
相关问题
Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:
This error message usually occurs when you try to use a React hook outside of a function component or inside a conditional statement or loop. React hooks are meant to be used only inside function components and not inside class components or plain JavaScript functions.
To fix this error, make sure that you are using the hook inside a function component and that the component is properly defined. Also, ensure that you are not calling the hook conditionally or in a loop.
Here's an example of how to use a hook correctly inside a function component:
```
import React, { useState } from 'react';
function MyComponent() {
const [count, setCount] = useState(0);
function handleClick() {
setCount(count + 1);
}
return (
<div>
<p>You clicked {count} times</p>
<button onClick={handleClick}>Click me</button>
</div>
);
}
export default MyComponent;
```
In this example, the `useState` hook is used inside the `MyComponent` function to define a state variable `count` and its corresponding update function `setCount`. The `handleClick` function uses the `setCount` function to update the `count` state when the button is clicked. Finally, the component returns some JSX that displays the current count and a button that triggers the `handleClick` function.
React Hook "useTranslation" cannot be called at the top level. React Hooks must be called in a React function component or a custom React Hook function.
这是一个关于React Hook "useTranslation"的错误提示,提示你不能在函数组件外部调用该 Hook,必须在函数组件内部或自定义 Hook 函数中调用。在函数组件外部调用该 Hook 会导致 React 抛出错误。为了解决这个问题,你需要将该 Hook 调用放到函数组件内部,或者定义一个自定义 Hook 函数来使用该 Hook。