I'm creating a list with React components, and am working on the list container and reusable list-item components. The parent most component passes information to middle component, but the child-most component does not have props
values.
What am I doing wrong? No console errors.
middle component:
const VideoList = (props) => {
const videoItems = props.videos.map((video) => {
return (
// want to render list-item component
<li key={video.etag}>{video.snippet.title}</li>
)
});
return (
<ul className="list-group">
{videoItems}
<ListItem
videos={ videoItems }
/>
</ul>
)
}
a console log in child-most component shows no props
I think it will be better if you pass props
directly into the children component. Try this:
const VideoList = (props) => {
const videoItems = props.videos.map((video) => {
return (
// want to render list-item component
<ListItem key={video.etag} video={video} />
)
});
return (
<ul className="list-group">
{videoItems}
</ul>
)
}
Inside your children component, you can display what you want
尝试使用“ this”关键字将属性传递给最子组件。
<ListItem videos={this.videoItems}/>
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