How to appoint a prototype variable

[Avante]

How do you change the prototype value from another function? My code doesn't work.

behaviorProto.Instance = function(type, inst)
{
    this.inst = inst;               
};
var behinstProto = behaviorProto.Instance.prototype;
function Acts() {};
Acts.prototype.GreedStartMoving = function ()

{

behinstProto.inst.x = 110; //Не работает

behinstProto.inst.y = 110; //Не работает

};

[gionna]

Dynamic change in prototype properties.

Right.

Create a prototype with properties, for example.

var someFunction = function() { } 
someFunction.prototype.some = "a";
somePrototype = someFunction.prototype;

Dynamic change of prototype properties.

function changeSomeProto() {
  somePrototype.some = "b"
}

Not right.

Create the properties of a copy of the class!

var someFunction = function() {
  this.some = 'a'; // Это собственное свойство, а не свойство прототипа
}
var somePrototype = someFunction.prototype;

Trying to change the properties of a class copy through a prototype, which is not possible.

function changeSomeProto() {
  somePrototype.some = "b"; // Мы присваиваем значение не существующему свойству прототипа
}