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21 lines
582 B
21 lines
582 B
4 years ago
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# `reduce()`
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The reduce method reduces the collection to a single value, passing the result of each iteration into the subsequent iteration:
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```js
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const collection = collect([1, 2, 3]);
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const total = collection.reduce((carry, item) => carry + item);
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// 6
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```
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The value for `carry` on the first iteration is null; however, you may specify its initial value by passing a second argument to reduce:
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```js
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const total = collection.reduce((carry, item) => carry + item, 4);
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// 10
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```
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[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/reduce.js)
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