# # `whereInstanceOf()`

The whereInstanceOf method filters the collection by a given class type:

    const collection = collect([
      new Player("Firmino"),
      new Player("Salah"),
      new Manager("Klopp")
    ]);

    const filtered = collection.whereInstanceOf(Player);

    filtered.all();

    //=> [
    //=>   new Player('Firmino'),
    //=>   new Player('Salah'),
    //=> ]

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