tastypie/node_modules/mout/src/lang/isUndefined.js

Tastypie is a webservice API framework for Node.js based on Django's Tastypie Framework. It provides a convenient, yet powerful and highly customizable, abstraction for creating REST-style interfaces

define(function () {
    var UNDEF;

    /**
     */
    function isUndef(val){
        return val === UNDEF;
    }
    return isUndef;
});