Please excuse my question if it doesnt make much sense.
I am using javascript to create a dom element
to do that i create an object ( obj ={}) and fill out the properties as i go, one of which is the dom element to be created. once the element is created and appended to the document i do not need the object to occupy any space in the memory so i was thinking i should remove it.
how would i go about doing that?
thank you
The object's going to exist in memory as soon as it's in the DOM, and the obj property that holds it is really holding a reference to it, not a copy. So as far as I know, the memory required to keep the reference as a property of obj should be negligible. In which case I wouldn't worry about removing it at all.
here is how:
my_var = null;
//or remove it
delete my_var;
delete does: it's not like C++' delete, ie it won't trigger object destruction; all it does is remove properties from objects - it doesn't work on local variables at all; delete foo.bar and delete foo[42] are ok, whereas delete foo will do nothing if foo is a local variable (and even throw an syntax error in strict-mode ECMAScript 5)if you define you object as locale like
var obj ={}
it will be automatically undefined at the end of the function.
