JavaScript: creating an inheritance function based on a prototype

Question

I want to create an inheritance function based on a prototype. I have this JavaScript:

Function.prototype.Inherits = function(parent) {
    this.prototype = new parent();
    this.prototype.constructor = this;
};

function Base() {};

function Foo() {
    this.Inherits(Base);
};

I want a function that does the same as this:

Foo.prototype = new Base();
Foo.constructor = Base();

Felix Loether · Accepted Answer · 2011-11-28 11:49:22Z

1

Because of the way you call it, this in your Function.prototype.Inherits function would be the object created, not its constructor (Foo). You might want to remove the line this.Inherits(Base); and add this line after (and outside) the Foo declaration: Foo.Inherits(Base);

answered Nov 28, 2011 at 11:49

Felix Loether

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2 Comments

hugomg Over a year ago

@Johan: His point was that doing things with the this is probably not what you want

Johan Over a year ago

Wouldnt it help to change Function to Object ?

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