# # `reduce()`

The reduce method reduces the collection to a single value, passing the result of each iteration into the subsequent iteration:

    const collection = collect([1, 2, 3]);

    const total = collection.reduce(function(carry, item) {
      return carry + item;
    });

    //=> 6

The value for `carry` on the first iteration is null; however, you may specify its initial value by passing a second argument to reduce:

    const total = collection.reduce(function(carry, item) {
      return carry + item;
    }, 4);

    //=> 10

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