freeCodeCamp/curriculum/challenges/espanol/10-coding-interview-prep/algorithms/inventory-update.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
a56138aff60341a09ed6c480	Actualización de Inventario	1	16019	inventory-update

--description--

Compara y actualiza el inventario en un arreglo de 2 dimensiones contra un segundo arreglo de 2 dimensiones de una entrega nueva. Actualizar las cantidades actuales del artículo del inventario (en arr1). Si un artículo no se puede encontrar, agregue el nuevo artículo con su cantidad al arreglo de inventario. El arreglo de inventario devuelto deberá estar en orden alfabético por elemento.

--hints--

La función updateInventory debe devolver un arreglo.

assert.isArray(
  updateInventory(
    [
      [21, 'Bowling Ball'],
      [2, 'Dirty Sock'],
      [1, 'Hair Pin'],
      [5, 'Microphone']
    ],
    [
      [2, 'Hair Pin'],
      [3, 'Half-Eaten Apple'],
      [67, 'Bowling Ball'],
      [7, 'Toothpaste']
    ]
  )
);

Traducciónes: update inventory: actualización del inventario. Bowling ball: bola de boliche. Dirty sock: calcetín sucio. Hair pin: pasador de cabello. Microphone: micrófono. Half-eaten apple: manzana media comida. Toothpaste: pasta de dientes. updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]) debería devolver un arreglo con una longitud de 6.

assert.equal(
  updateInventory(
    [
      [21, 'Bowling Ball'],
      [2, 'Dirty Sock'],
      [1, 'Hair Pin'],
      [5, 'Microphone']
    ],
    [
      [2, 'Hair Pin'],
      [3, 'Half-Eaten Apple'],
      [67, 'Bowling Ball'],
      [7, 'Toothpaste']
    ]
  ).length,
  6
);

updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]) debería devolver [[88, "Bowling Ball"], [2, "Dirty Sock"], [3, "Hair Pin"], [3, "Half-Eaten Apple"], [5, "Microphone"], [7, "Toothpaste"]].

assert.deepEqual(
  updateInventory(
    [
      [21, 'Bowling Ball'],
      [2, 'Dirty Sock'],
      [1, 'Hair Pin'],
      [5, 'Microphone']
    ],
    [
      [2, 'Hair Pin'],
      [3, 'Half-Eaten Apple'],
      [67, 'Bowling Ball'],
      [7, 'Toothpaste']
    ]
  ),
  [
    [88, 'Bowling Ball'],
    [2, 'Dirty Sock'],
    [3, 'Hair Pin'],
    [3, 'Half-Eaten Apple'],
    [5, 'Microphone'],
    [7, 'Toothpaste']
  ]
);

updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], []) debería regresar [[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]].

assert.deepEqual(
  updateInventory(
    [
      [21, 'Bowling Ball'],
      [2, 'Dirty Sock'],
      [1, 'Hair Pin'],
      [5, 'Microphone']
    ],
    []
  ),
  [
    [21, 'Bowling Ball'],
    [2, 'Dirty Sock'],
    [1, 'Hair Pin'],
    [5, 'Microphone']
  ]
);

updateInventory([], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]]) debería regresar [[67, "Bowling Ball"], [2, "Hair Pin"], [3, "Half-Eaten Apple"], [7, "Toothpaste"]].

assert.deepEqual(
  updateInventory(
    [],
    [
      [2, 'Hair Pin'],
      [3, 'Half-Eaten Apple'],
      [67, 'Bowling Ball'],
      [7, 'Toothpaste']
    ]
  ),
  [
    [67, 'Bowling Ball'],
    [2, 'Hair Pin'],
    [3, 'Half-Eaten Apple'],
    [7, 'Toothpaste']
  ]
);

updateInventory([[0, "Bowling Ball"], [0, "Dirty Sock"], [0, "Hair Pin"], [0, "Microphone"]], [[1, "Hair Pin"], [1, "Half-Eaten Apple"], [1, "Bowling Ball"], [1, "Toothpaste"]]) debería regresar [[1, "Bowling Ball"], [0, "Dirty Sock"], [1, "Hair Pin"], [1, "Half-Eaten Apple"], [0, "Microphone"], [1, "Toothpaste"]].

assert.deepEqual(
  updateInventory(
    [
      [0, 'Bowling Ball'],
      [0, 'Dirty Sock'],
      [0, 'Hair Pin'],
      [0, 'Microphone']
    ],
    [
      [1, 'Hair Pin'],
      [1, 'Half-Eaten Apple'],
      [1, 'Bowling Ball'],
      [1, 'Toothpaste']
    ]
  ),
  [
    [1, 'Bowling Ball'],
    [0, 'Dirty Sock'],
    [1, 'Hair Pin'],
    [1, 'Half-Eaten Apple'],
    [0, 'Microphone'],
    [1, 'Toothpaste']
  ]
);

--seed--

--seed-contents--

function updateInventory(arr1, arr2) {
    return arr1;
}

// Example inventory lists
var curInv = [
    [21, "Bowling Ball"],
    [2, "Dirty Sock"],
    [1, "Hair Pin"],
    [5, "Microphone"]
];

var newInv = [
    [2, "Hair Pin"],
    [3, "Half-Eaten Apple"],
    [67, "Bowling Ball"],
    [7, "Toothpaste"]
];

updateInventory(curInv, newInv);

--solutions--

function updateInventory(arr1, arr2) {
  arr2.forEach(function(item) {
    createOrUpdate(arr1, item);
  });
  // All inventory must be accounted for or you're fired!
  return arr1;
}

function createOrUpdate(arr1, item) {
  var index = -1;
  while (++index < arr1.length) {
    if (arr1[index][1] === item[1]) {
      arr1[index][0] += item[0];
      return;
    }
    if (arr1[index][1] > item[1]) {
      break;
    }
  }
  arr1.splice(index, 0, item);
}

// Example inventory lists
var curInv = [
    [21, 'Bowling Ball'],
    [2, 'Dirty Sock'],
    [1, 'Hair Pin'],
    [5, 'Microphone']
];

var newInv = [
    [2, 'Hair Pin'],
    [3, 'Half-Eaten Apple'],
    [67, 'Bowling Ball'],
    [7, 'Toothpaste']
];

updateInventory(curInv, newInv);