jQuery .data() assignments work in console print but produces errors

Question

What is wrong with these jQuery data() assignments? When I wrap the first in a console.log(), it works and prints out the data.

But jsbin shows tons of errors that I can't put my finger on?

$("body").data("user_information", {});
$("body").data("user_information", {
    contact_info: {},
    billing_info: {}
});

console.log($("body").data("user_information").contact_info, {name: "paul", company: "testCo"});

$("body").data("user_information").contact_info, {
    name: "paul",
    company: "testCo"
};

$("body").data("user_information").billing_info, {
    name: "steve",
    company: "testCo"
};

jsbin

Answer 1

If you're trying to do assignment, you should do it like this:

$("body").data("user_information").contact_info = {
    name: "paul",
    company: "testCo"
};

The comma operator you were using there was confusing me. Alternatively, you could do

$("body").data("user_information", {
        contact_info: {
            name: "paul",
            company: "testCo"
        }
});