[英]Add custom props to this.props.children in React component
I have component which accepts children. 我有接受孩子的组件。 Let's say;
我们说吧;
<Toolbar><div>C1</div><div>C2</div></Toolbar>
When I print children using {children}
inside of Toolbar
, I can see them. 当我使用
Toolbar
{children}
打印孩子时,我可以看到它们。 However, I need to add/manupilate some props, so I want to iterate over them (like other arrays.map). 但是,我需要添加/ manupilate一些道具,所以我想迭代它们(像其他arrays.map)。 However, when I try to use
children.map
I get following error. 但是,当我尝试使用
children.map
我得到以下错误。
Warning: React.createElement: type is invalid -- expected a string (for built-in
components) or a class/function (for composite components) but got: object.
How can I achive this? 我怎么能得到这个?
Thank you! 谢谢!
Edit; 编辑; I mean something like;
我的意思是;
{children.map((Child,index)=> <Child {...newProps}/>)}
You would make use of React.Children.map
and then React.cloneElement
to return the children after adding new props 你会利用
React.Children.map
然后React.cloneElement
增加新的道具后,孩子恢复
{React.Children.map(children, child => {
return React.cloneElement(child, {
...newProps
});
})}
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