| 1 | Produces accumulating values.
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| 2 | [:package:](https://www.npmjs.com/package/@extra-array/accumulate)
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| 3 | [:smiley_cat:](https://github.com/orgs/nodef/packages?repo_name=extra-array)
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| 4 | [:running:](https://npm.runkit.com/@extra-array/accumulate)
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| 5 | [:vhs:](https://asciinema.org/a/332019)
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| 6 | [:moon:](https://www.npmjs.com/package/@extra-array/accumulate.min)
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| 7 | [:scroll:](https://unpkg.com/@extra-array/accumulate/)
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| 8 | [:newspaper:](https://nodef.github.io/extra-array/)
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| 9 | [:blue_book:](https://github.com/nodef/extra-array/wiki/)
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| 10 |
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| 11 | > Similar: [map], [filter], [reject], [reduce], [accumulate].
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| 12 |
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| 13 | > This is part of package [extra-array].
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| 14 |
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| 15 | [extra-array]: https://www.npmjs.com/package/extra-array
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| 16 |
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| 17 | <br>
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| 18 |
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| 19 | ```javascript
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| 20 | array.accumulate(x, fr, [acc]);
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| 21 | // x: an array
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| 22 | // fr: reduce function (acc, v, i, x)
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| 23 | // acc: initial value
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| 24 | ```
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| 25 |
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| 26 | ```javascript
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| 27 | const array = require("extra-array");
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| 28 |
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| 29 | var x = [1, 2, 3, 4];
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| 30 | array.accumulate(x, (acc, v) => acc+v);
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| 31 | // [ 1, 3, 6, 10 ]
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| 32 |
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| 33 | array.accumulate(x, (acc, v) => acc+v, 100);
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| 34 | // [ 101, 103, 106, 110 ]
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| 35 | ```
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| 36 |
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| 37 | <br>
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| 38 | <br>
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| 39 |
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| 40 |
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| 41 | ## References
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| 42 |
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| 43 | - [Data.List.scanl: Haskell](https://hackage.haskell.org/package/base-4.12.0.0/docs/Data-List.html#v:scanl)
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| 44 | - [itertools.accumulate: Python](https://docs.python.org/3/library/itertools.html#itertools.accumulate)
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| 45 |
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| 46 | [accumulate]: https://github.com/nodef/extra-array/wiki/accumulate
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| 47 | [map]: https://github.com/nodef/extra-array/wiki/map
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| 48 | [filter]: https://github.com/nodef/extra-array/wiki/filter
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| 49 | [reduce]: https://github.com/nodef/extra-array/wiki/reduce
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| 50 | [reject]: https://github.com/nodef/extra-array/wiki/reject
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