Object.entries = Object.entries ? Object.entries : function(obj) {
  var allowedTypes = ["[object String]", "[object Object]", "[object Array]", "[object Function]"];
	var objType = Object.prototype.toString.call(obj);
	
	if(obj === null || typeof obj === "undefined") {
		throw new TypeError("Cannot convert undefined or null to object");
	} else if(!~allowedTypes.indexOf(objType)) {
		return [];
	} else {
		// if ES6 is supported
		if (Object.keys) {
			return Object.keys(obj).map(function (key) {
				return [key, obj[key]];
			});
		}
		var result = [];
		for (var prop in obj) {
			if(obj.hasOwnProperty(prop)) {
				result.push([prop, obj[prop]]);
			}
		}
		
		return objType === "[object Array]" ? result : result.sort(function(a, b) {return a[1]-b[1];});
	}
};

if (typeof module !== 'undefined' && module.exports) {
    module.exports = Object.entries;
}