Received nan for the `children` attribute. if this is expected, cast the value to a string.

Received NaN for the ‘children’ attribute. If this is expected, cast the value to a string.

This error message indicates that the ‘children’ attribute has received a value of NaN (Not-a-Number), which is not a valid input for this attribute.

If you expect to receive NaN for the ‘children’ attribute, you should convert it to a string before using it.

Here is an example of how you can cast NaN to a string:

        let childrenValue = NaN;
        let stringValue = String(childrenValue);
        console.log(stringValue); // "NaN"
    

The above code snippet demonstrates the conversion of NaN to a string using the JavaScript String() function.

By explicitly casting NaN to a string, you can avoid any potential issues or unexpected behavior in your code.

Hope this helps!