JavaScript - Adding an object into an object -

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i realise has been asked before cannot find exact answer question.

i'm trying recreate object in javascript. original object looks this:

stock {    id: 'a0236000374782',    product { name: 'gum',              price: 2.49            } }

when attempt recreate stock object have first value id in , trying somehow push product object in well. here's have attempted:

var product = {}; stock.product.name = 'gum';

this returns cannot set property name of undefined. tried:

var product = {}; stock = {product.name : 'gum'};

this returns "uncaught syntaxerror: unexpected token ".". cannot figure out not doing right.

you can create objects in javascript.

assuming have stock defined looking this:

var stock = { id: '1234' };

you can assign product follows:

stock.product = { name: 'gum', price: 2.49 };

that's same doing this:

var product = { name: 'gum', price: 2.49 }; stock.product = product;

but can't assign property onto object hasn't been created. isn't possible:

stock.uncreatedobject.myprop = 'will not work';

but possible:

stock.createdobject = {}; stock.createdobject.myprop = 'this work';

which equivalent this:

stock.createdobject = { myprop: 'will work' };

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