我试图在我的cockpit函数中使用useEffect返回一些元素,但我得到这个奇怪的错误,说“第6行:React Hook”useEffect“在函数”cockpit“中被调用,它既不是React函数组件,也不是一个自定义的React Hook函数react-hooks / rules-of-hooks“。
但我的驾驶舱组件肯定是一个功能?
import React, { useEffect } from 'react'
import classes from './Cockpit.css'
const cockpit = (props) => {
useEffect(() => {
console.log('I work!')
})
const assignedClasses = []
let btnClass = ''
if (props.showPersons) {
btnClass = classes.Red;
}
if (props.persons.length <= 2) {
assignedClasses.push(classes.red)
}
if (props.persons.length <= 1) {
assignedClasses.push(classes.bold)
}
return (
<div className={classes.Cockpit}>
<h1>{props.title}</h1>
<p className={assignedClasses.join(' ')}>HELLO, HELLO!</p>
<button
className={btnClass}
onClick={props.clicked}>Click me!</button>
</div>
)
}
export default cockpit
仅供参考,组件名称应以大写字母开头