Deep-object creation and detection in Javascript with Underscore/Lodash

DeepObject.js

// injectObjectPath
//   For a deep-object path, creates new or returns existing deep-object
// Params:
//   obj: the lowest level object
//   path: dot-delimited deep-object path
// Returns:
//   deep-object created or found
// Usage:
//   var integerValidator = injectObjectPath(window, 'rr.validators.integer');
// Notes:
//   Assumes Underscore/Lodash
function injectObjectPath(obj, path) {
    _.each(path.split('.'), function(part) {
        obj[part] = obj[part] || {};
        obj = obj[part];
    });
    return obj;
}

// hasObjectPath
//   Returns true if the obj contains the deep-object path
// Params:
//   obj: the lowest level object
//   path: dot-delimited deep-object path
// Returns:
//   true if the object contains the deep-object path, else false
// Usage:
//   var hasIntegerValidator = hasObjectPath(window, 'rr.validators.integer');
// Notes:
//   Assumes Underscore/Lodash
function hasObjectPath(obj, path) {
    return _.every(path.split('.'), function(part) {
        var hasPart = _.has(obj, part);
        obj = obj[part];
        return hasPart;
    });
}