How to use component properties outside of it in Vue?

Question

JavaScript

I have a component (separately html and separately js) that is displayed on a button. I connect it in a php file, for example:
there are input in php and at the end of the component.
The bottom line is how do I change the value of the data attributes through v-modal when I enter a value in the input?
El not set writes an error:
The "el" option should be a function that returns a per-instance value in component definitions.

Answer 1

emit