[英]React useEffect and useCallback linting error - missing dependency
即使我在定义它的父组件中使用推荐的 useCallback 钩子,Linter 也抱怨缺少作为依赖项的函数。
有谁知道如何解决这一问题? 似乎无法在任何地方找到示例
此处链接到沙箱https://codesandbox.io/s/hopeful-wind-w4sp5
const arr = ['One', 'Two', 'Three']
const SyncingData = () => {
const [progress, setProgress] = useState(0)
const [children, setChildrenProgress] = useState(arr.map(item => 0))
const handleChildrenProgress = useCallback(
(progress, index) => {
setChildrenProgress(
children.map((item, currIndex) =>
index === currIndex ? progress : item,
),
)
},
[children],
)
useEffect(() => {
setProgress(
children.reduce((sum, item) => (sum = sum + item), 0) / children.length,
)
}, [children])
return (
<div>
<div>Total Progress: {progress}</div>
<ul>
{arr.map((item, index) => (
<Child
key={index}
index={index}
updateProgress={handleChildrenProgress}
name={item}
delay={10 * index}
/>
))}
</ul>
</div>
)
}
const Child = ({updateProgress, name, index, delay}) => {
const [progress, setProgress] = useState(0)
// This is the useEffect the linter doesn't like
useEffect(() => {
updateProgress(progress, index)
}, [progress, index])
useInterval(() => {
if (progress < 100) {
setProgress(progress + 1)
}
}, delay)
return (
<div>
{name} {progress}
</div>
)
}
我认为您应该尝试在效果的依赖项列表中添加“updateProgress”:
useEffect(() => {
updateProgress(progress, index)
}, [progress, index, updateProgress])
函数 updateProgress 包含在您提供的 lambda 中。
linter 试图告诉您,如果该函数发生更改,则效果将不会考虑该更改。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.