If the elementUI callback function does not overwrite the original callback parameter, pass in the new parameter.

when the visible-change drop-down box appears / hidden in elementUI, it will be true, hidden or false . Now I want to pass in new custom parameters without overwriting the original parameters in this event. How should I write this?

Dec.27,2021

@ visible-change= "(var1) = > { (var1, your own parameters)}" (it's a bit inelegant to write this)
you can describe the requirements and see if there are other ways
the following figure is a function in the source code

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