Thanks for rebasing this PR 👍 I will have a look into it in the next days

Let's get this merged! I was looking for a way to filter props with value of undefined, having a function allows for this and more.

Let's do this! 🚀

Released in v14.3.0

I see this is still relatively fresh!!
I would like to make one improvement... Instead of optionally showing the prop with a function, I would like to override the string for the prop's value with that the filterProps function.
For example, if you provide a prop with a reference to another Component, it will try to render that as an object.
Example:
<Accordion.Toggle as={Card.Header} >
returns this string:
<Accordion.Toggle as={{ $$typeof: Symbol(react.forward_ref), defaultProps: undefined, displayName: 'Card.Header', render: function noRefCheck() {} }} >

Ideally, I could write a function that replaces that prop value with the component's displayName. Similar to how options.displayName works... but for property values.

In the above example, I would like to pass the following to filterProps:
filterProps: (value, key) => { if (key === "style") { return false } if (key === "as") { return value.displayName; } }