Setting a constructor's prototype property to a primative, array or function.

[Peter Michaux]

Hi,

What happens if you do this?

function Person() {}
Person.prototype = 7;
var ted = new Person();

Also what happens if you set Person.prototype to an array or function?

Thank you,
Peter

 

[Richard Cornford]

What happens if you do this?

function Person() {}
Person.prototype = 7;
var ted = new Person();

See ECMA 262, 3rd Ed. Section 13.2.2

If the - prototype - property of a function that is used as a constructor
is not an object (of the ECMAScript Object type) then the original value
of - Object.prototype - is used to set the [[Prototype]] if the objects
constructed.

Also what happens if you set Person.prototype to an array
or function?

Functions and Arrays are objects so they will be used as the
[[Prototype]] of the newly constructed object, and it will inherit their
properties and methods.

Richard.