abs-lang / abs / 1283

75%

master: 63%

Pull #347

travis-ci-com

array.union(other_array)

Computes the [union](https://en.wikipedia.org/wiki/Union_(set_theory))
between 2 arrays:

```bash
[1, 2, 3].union([1, 2, 3, 4]) # [1, 2, 3, 4]
[1, 2, 3].union([3]) # [1, 2, 3]
[].union([3, 1]) # [3, 1]
[1, 2].union([3, 4]) # [1, 2, 3, 4]
```

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