This is a simple array dimension plugin using modular pattern (not like jquery like pattern)

arrayDimensionModularPattern.js

var arrayDimentionObject = {
  arrayDimention : arrayDimentionFn,
  f1 : f1
};

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

function f1(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';
}