Deep has

Find all instances of a specified key within a given object.

usage

With code such as:

var has = require('deep-has');

var obj = {
    foo: {
        bar: '123'
    },
    bar: false
};

var x = has(obj, 'bar');

x would be:

[
    { 'bar': false },
    { 'foo.bar': '123' }
]

The tests also provide further insight.