Checks if two arrays are equal.
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> Similar: [compare], [isEqual].

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

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

<br>

```javascript
array.isEqual(x, y, [fc], [fm]);
// x:  an array
// y:  another array
// fc: compare function (a, b)
// fm: map function (v, i, x)
```

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

var x = [1, 2];
array.isEqual(x, [1, 2]);
// true

array.isEqual(x, [11, 12]);
// false

array.isEqual(x, [11, 12], (a, b) => (a % 10) - (b % 10));
// true

array.isEqual(x, [11, 12], null, v => v % 10);
// true
```

<br>
<br>


## References

- [Array.isEqual: sugarjs](https://sugarjs.com/docs/#/Array/isEqual)
- [is-arrays-equal: @teaegg](https://www.npmjs.com/package/is-arrays-equal)
- [shallow-equal: @moroshko](https://www.npmjs.com/package/shallow-equal)

[compare]: https://github.com/nodef/extra-array/wiki/compare
[isEqual]: https://github.com/nodef/extra-array/wiki/isEqual