code: function arrayToUpperCase(array) {
  	let newArray = array.map(function (item) {
  		if (Array.isArray(item)) {
  			item = item.map(function (item) {
  				return item.toUpperCase();
  			});
  		} else {
  			return item.toUpperCase();
  		}
  	});
  
  	return newArray;
  }
docs: /*
  Makes all the elements of an array to uppercase
  @param array The array to modify
  @return An array with all elements as upper case.