@extra-array/take-while/README.md

Keeps values from left, while a test passes.

Keeps values from left, while a test passes.
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> Alternatives: [take], [takeRight], [takeWhile], [takeWhileRight].<br>
> Similar: [take], [drop].

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

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

<br>

```javascript
array.takeWhile(x, ft);
// x:  an array
// ft: test function (v, i, x)
```

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

var x = [1, 2, 3, 4, 5];
array.takeWhile(x, v => v < 3);
// [ 1, 2 ]

array.takeWhile(x, v => v < 4);
// [ 1, 2, 3 ]
```

<br>
<br>


## References

- [Data.List.takeWhile: Haskell](https://hackage.haskell.org/package/base-4.14.0.0/docs/Data-List.html#v:takeWhile)
- [Array.prototype.slice: MDN web docs](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice)
- [_.takeWhile: lodash](https://lodash.com/docs/4.17.15#takeWhile)

[take]: https://github.com/nodef/extra-array/wiki/take
[takeWhile]: https://github.com/nodef/extra-array/wiki/takeWhile
[drop]: https://github.com/nodef/extra-array/wiki/drop
[takeRight]: https://github.com/nodef/extra-array/wiki/takeRight
[takeWhileRight]: https://github.com/nodef/extra-array/wiki/takeWhileRight