javascript - how can I extract in js object and operation -

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there obejct nestobject
want 

nestobject['weakness']['modules']['weakness'][item] = {'enabled': true}; nestobject['weakness']['modules']['weakness'][item]['check_list'] = file_leak_list;

i try this:

var aaa = nestobject['weakness']['modules']['weakness'][item] aaa = {'enabled': true}; aaa['check_list'] = file_leak_list;

but doesn't work
how can write code elegant?

that json maybe?

var nestobject = {     weakness:{         modules:{             weakness:{                 item:{enabled:true, check_list:"file_leak_list"}             }         }     } };  alert(aaa.enabled); aaa.enabled = false; alert(aaa.enabled);  alert(aaa.check_list); aaa.check_list = "some file"; alert(aaa.check_list);

http://jsfiddle.net/bernardobj/kdnsc8fr/

can provide jsfiddle ??


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