5.0 KiB
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
a56138aff60341a09ed6c480 | Aggiornamento dell'inventario | 5 | 16019 | inventory-update |
--description--
Confronta e aggiorna l'inventario memorizzato in un array 2D rispetto ad un secondo array 2D che rappresenta una nuova consegna. Aggiorna le quantità attuali degli oggetti esistenti (in arr1
). Se un oggetto non viene trovato, aggiungi il nuovo oggetto e la sua quantità nell'array dell'inventario. L'array di inventario restituito dovrebbe essere in ordine alfabetico per articolo.
--hints--
La funzione updateInventory
deve restituire un array.
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']
]
)
);
updateInventory([[21, "Bowling Ball"], [2, "Dirty Sock"], [1, "Hair Pin"], [5, "Microphone"]], [[2, "Hair Pin"], [3, "Half-Eaten Apple"], [67, "Bowling Ball"], [7, "Toothpaste"]])
dovrebbe restituire un array di lunghezza di 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"]])
dovrebbe restituire [[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"]], [])
dovrebbe restituire [[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"]])
dovrebbe restituire [[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"]])
dovrebbe restituire [[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);