What happens if a new instance object is not assigned to a variable?

Question

What happens if you do not assign a new object to a variable? For instance:

function MyConstructor() {
   // Codes here
};

new MyConstructor(); // new object instance is not assign to a variable

Is this code dangerous? Does this smooth the global namespace? Is it possible to access an object created using this style?

Thank.

+5

japt Feb 03 '13 at 13:48

3 answers

jAndy · Answer 1 · 2013-02-03T13:51:58+0000

, new MyConstructor() , .

new MyConstructor().someMethod();

... , :)

Guffa · Answer 2 · 2013-02-03T13:52:56+0000

- , , .

, , , .

, , , :

var myHandlers = {};

function Handler(name) {
  myHandlers[name] = this;
}

new Handler("test");

- , , , .

zero · Answer 3 · 2013-02-03T13:52:47+0000

because after its creation there is no reference to it, garbage will be collected soon.

FYI only: the reason for creating objects is 80 to 90% of the time, so they can be referenced and used later.