javaScript получить элемент от id
var element = document.getElementById("YourElementId");
Batman
var element = document.getElementById("YourElementId");document.getElementById("someid");document.getElementById('numbers').valuedocument.getElementById("some_id");const element = document.getElementById('id');
//or
const element = document.querySelector('#id');function myFunc(variable){
var s= document.getElementById(variable);
s.value = 'New value'
}