Electron Javascript Html Why button don't do their thing? basic question

Question

Hello to all I said it is a Electron question, but is it more a Js/html question.
I can't get to work buttons.
I just can't get where the problem is.
Thanks for the help!

https://gist.github.com/8305528b3ac0f27c0bd24ae5e86e43a2

Answer 1

Ok Just to let you know that I am trying hard also

//btn.addEventListener ("click", function() {alert("did something");});
//btn.addEventListener("onclick", myScript);
//btn.onclick = function(){myScript()};
//btn.addEventListener("click", function(){ alert("Hello World!"); });

btn.setAttribute("onclick", function myScript() { console.log("blablapppp"); });

None are giving me result, but the last at least appears in the DOM.

Answer 2

Still mothing happening...
btn.setAttribute("onclick", function dothat() { myScript(); });

Answer 3

idinput=("input"+id).toString
btn.setAttribute("onclick", myScript(document.getElementById(idinput).value));