oirodolfo
5/9/2016 - 7:03 PM

isUndefined.js

  var isUndefined = function(obj){
        return (obj !== undefined) && (obj !== 'undefined') && (obj !== null) && (obj !== 'null') && (obj !== NaN) && (obj !== 'NaN') && (obj !== '') && (obj !== ' ') ? false : true;
    };