To ensure that an objects matches the expected structure

checkValidateObject.js

var target = {
    prop1: "123",
    prop2: "456",
    prop3: {
        A: "1",
        B: "2"
    }
};

var schema = [
    { key: "prop1" },
    { key: "prop2" },
    {
        key: "prop3",
        children: [
            { key: "A"},
            { key: "B"}
         ]
    }
];

validateObject(target, schema);

validateObject.js

var validateObject = function (target, schema) {
    var result = {
        status: true,
        propertyNotFound: null
    };

    var error = function (propertyNotFound) {
        result.status = false;
        result.propertyNotFound = propertyNotFound;
    };

    if (!target) {
        error("target is null");
        return result;
    }

    if (!schema) {
        error("schema is null");
        return result;
    }

    var tokenKey = "key";
    var tokenChildren = "children";

    for (var index = 0; index < schema.length; index++) {
        if (target.hasOwnProperty(schema[index][tokenKey]) === false) {
            error(schema[index][tokenKey]);
            return result;
        }

        if (schema[index].hasOwnProperty(tokenChildren) === true) {
            for (var indexChildren = 0; indexChildren < schema[index].children.length; indexChildren++) {
                var resultChildren = validateJson(target[schema[index][tokenKey]], schema[index].children[indexChildren]);
                if (resultChildren.status === false) {
                    error(resultChildren.propertyNotFound);
                    return result;
                }
            }
        }
    }

    return result;
}