null as forced default value

[nagarajanchinnasamy]

For the below code:

var om = require('object-mapper');

var map = {
    "id": {
        "key": "destId",
        "transform": function(id) {
            return "_" + id;
        } // ,
        // "default": "0"
    }
};

var src = {
    // "id": 1
};

var dest = om(src, map);
console.log(JSON.stringify(dest));

As property id doesn't exist in src, I would expect an output of an empty object {}.

But the output generated is:

{ destId: '_null' }

The null value sent to transform is a wrongly forced default value.

I have made changes to fix this issue. However, it broke one of the tests (test no. 70) for which I have made changes to make it successful. Will send a pull request. Please review. Thanks.

[YuriBarssi]

Are you guys planning to resolve this one @wankdanker ? Thanks!!