Javascript: Determine unknown array length and map dynamically

Question

Going to do my best at explaining what I am trying to do.

I have two models, mine and an api response I am receiving. When the items api response comes in, I need to map it to my model and inserts all the items. This is simple of course. Heres the issue, I need to do so without really knowing what I am dealing with. My code will be passed in two strings, one of my models mapping path and one of the api response mapping path.

Here are the two paths

var myPath = "outputModel.items[].uniqueName"
var apiPath = "items[].name"

Basically FOR all items in apiPath, push into items in myPath and set to uniqueName

What it comes down to is that my code has NO idea when two items need to be mapped, or even if they contain an array or simple field to field paths. They could even contain multiple arrays, like this:

******************** EXAMPLE *************************

var items = [
    {
        name: "Hammer",
        skus:[
            {num:"12345qwert"}
        ]
    },
    {
        name: "Bike",
        skus:[
            {num:"asdfghhj"},
            {num:"zxcvbn"}
        ]
    },
    {
        name: "Fork",
        skus:[
            {num:"0987dfgh"}
        ]
    }
]

var outputModel = {
    storeName: "",
    items: [
        {
            name: "",
            sku:""
        }
    ]
};


outputModel.items[].name = items[].name;
outputModel.items[].sku = items[].skus[].num;

************************ Here is the expected result of above

var result = {
    storeName: "",
    items: [
        {
            name: "Hammer",
            sku:"12345qwert"
        },
        {
            name: "Bike",
            sku:"asdfghhj"
        },
        {
            name: "Bike",
            sku:"zxcvbn"
        },
        {
            name: "Fork",
            sku:"0987dfgh"        }
    ]
};

I will be given a set of paths for EACH value to be mapped. In the case above, I was handed two sets of paths because I am mapping two values. It would have to traverse both sets of arrays to create the single array in my model.

Question - How can I dynamically detect arrays and move the data around properly no matter what the two model paths look like? Possible?