How to pass value from C# form to javascript function?

Question

JavaScript

Visual Studio, C#
Have Form1 and say string page = (" https://toster.ru/ ");
Also added script.js, which runs on Form1.
How to pass page value from form to script?

Answer 1

a script.js script that runs on Form1.

What is it like?

Answer 2

addEventListener we hang the change event on the element and catch it, no ajax is needed