Constructors and prototypes
From Yate Documentation
The Javascript language does not have classes, it supports only objects. However, a common behavior of objects can be implemented using prototypes.
Adding class properties and methods
Even if objects are not class members they can share a set of common properties and methods.
Currently Yate does not automatically provide a prototype for objects. This can be added easily to a constructor:
function MyConstructor()
{
this.MyProperty = 0;
}
MyConstructor.prototype = new Object;
Now shared properties and methods can be added to the prototype:
MyConstructor.prototype.SharedProperty = 1;
MyConstructor.prototype.MyMethod = function(x)
{
return x + this.MyProperty;
};
IMPORTANT: There's a semicolon after the closing brace as this is an assignment and not a function declaration
Accessing the prototype
Javascript does not provide a standard way of accessing an object's prototype.
Yate uses a widespread extension of a __proto__ attribute to access the prototype:
Engine.print_r(this.__proto__);
See also
External links
