Gets first value.
[:package:](https://www.npmjs.com/package/@extra-array/head)
[:smiley_cat:](https://github.com/orgs/nodef/packages?repo_name=extra-array)
[:running:](https://npm.runkit.com/@extra-array/head)
[:vhs:](https://asciinema.org/a/332061)
[:moon:](https://www.npmjs.com/package/@extra-array/head.min)
[:scroll:](https://unpkg.com/@extra-array/head/)
[:newspaper:](https://nodef.github.io/extra-array/)
[:blue_book:](https://github.com/nodef/extra-array/wiki/)

> Similar: [head], [tail], [init], [last].

> This is part of package [extra-array].

[extra-array]: https://www.npmjs.com/package/extra-array

<br>

```javascript
array.head(x, [vd]);
// x:  an array
// vd: default value
```

```javascript
const array = require("extra-array");

array.head([1, 2, 3]);
// 1

array.head([], -1);
// -1
```

<br>
<br>


## References

- [Data.List.head: Haskell](https://hackage.haskell.org/package/base-4.12.0.0/docs/Data-List.html#v:head)
- [_.head: lodash](https://lodash.com/docs/4.17.15#head)
- [Array.first: sugarjs](https://sugarjs.com/docs/#/Array/first)

[head]: https://github.com/nodef/extra-array/wiki/head
[tail]: https://github.com/nodef/extra-array/wiki/tail
[init]: https://github.com/nodef/extra-array/wiki/init
[last]: https://github.com/nodef/extra-array/wiki/last