• checkArray_objType0n(object_array, object_type) will not fail on an empty object_array
• checkArray_objType1n(object_array, object_type) will fail on an empty object_array

const RECIPE_TYPES = {
  title: "string",
  ingredients: "array",
  minutes: "number"
};

recipe_arr = [{
  {title: "Mac and Cheese", ingredients: [ { ingredient: "cheese", amount: "handful" }, { ingredient: "milk", amount: "123ml" } ], minutes: 12},
  {title: "Cookies",        ingredients: [ { ingredient: "flour", amount: "1 cup" },    { ingredient: "milk", amount: "123ml" } ], minutes: 120},
  {title: "Banana Bread",   ingredients: [ { ingredient: "flour", amount: "1 cup" },    { ingredient: "Bananas", amount: "3"  } ], minutes: 45}
}]

const err = type_czech.checkArray_objType0n([], RECIPE_TYPES)
if (err) 
  throw "Cannot fail as no objects"

const err = type_czech.checkArray_objType0n(recipe_arr, RECIPE_TYPES)
if (err) 
  throw "recipe_arr element does not conform to RECIPE_TYPES " + err

const err = type_czech.checkArray_objType1n([], RECIPE_TYPES)
if (err) 
  throw "Must be at least 1 object in the array" + err