Ajax Data Fetch Using Variable

// Reference Link : https://www.py4u.net/discuss/930978

$('#submit').click(function (event) {
    event.preventDefault();

    var data = $.ajax({
        type: 'POST',
        url: '/form',
        async: false,
        dataType: "json",
        data: $(form).serialize(),
        success: function (data) {
            return data;
        },
        error: function (xhr, type, exception) {
            // Do your thing
        }
    });

    if(data.status === 200)
    {
        $('#container').html(data.responseJSON.the_key_you_want);
    }
});