How to remove a specific tuple from a array of tuples in swift

Question

arrayOfTuples = [(4, 4, "id1"), (3, 6, "id2"), (3, 6, "id3")]

How to remove the item with the id2 string?

Leo Dabus · Accepted Answer · 2020-08-10 21:46:08Z

4

You can use RangeReplaceableCollection method removeAll(where:) and pass a predicate:

var arrayOfTuples = [(4, 4, "id1"), (3, 6, "id2"), (3, 6, "id3")]
arrayOfTuples.removeAll(where: {$2 == "id2"})
print(arrayOfTuples)  // [(4, 4, "id1"), (3, 6, "id3")]

If you would like to remove only the first occurrence where the third element of your tuple is equal to "id2" you can use Collection's method firstIndex(where:):

if let index = arrayOfTuples.firstIndex(where: {$2 == "id2"}) {
    arrayOfTuples.remove(at: index)
}

edited Aug 10, 2020 at 21:46

answered Aug 10, 2020 at 21:37

Leo Dabus

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