This is a simple array dimension plugin using constructor pattern

arrayDimensionConstractorPattern.js

function RjLib(){
  
  /* 
  ** returning public function for the api
  ** this public function is accessable to user
  */
  
  return {
    arrayDimention : RjLib.prototype.arrayDimention
  }
}

/*
** This function is deciding whether array is either
** 2D or 1D or array is fully proper array or not.
** @params args taking arguments
** @params arg[0] : Array
** @params arg[1] : callback function
*/

RjLib.prototype.arrayDimention = function(){
  var args = Array.prototype.slice.call(arguments);
  return (args[0].length === 0) ? args[1]('Array is empty') : args[1](RjLib.prototype.f1(args[0]));
}

RjLib.prototype.f1 = function(arr){
 var arrr = [];
 for(var i in arr){
   arrr.push(Array.isArray(arr[i]));
 }
 return (arrr.indexOf(true) > -1) ? (arrr.indexOf(false) > -1) ? 'Please check your array' : '2D' : '1D';
}

var myLib = new RjLib();

myLib.arrayDimention([1,2,3],function(status){
  console.log(status);
});