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# mskreject

> Apply a mask to a provided input array.

<section class="usage">

## Usage

```javascript
var mskreject = require( '@stdlib/array/mskreject' );
```

#### mskreject( x, mask )

Returns a new array by applying a mask to a provided input array.

```javascript
var x = [ 1, 2, 3, 4 ];

var y = mskreject( x, [ 0, 1, 0, 1 ] );
// returns [ 1, 3 ]
```

The function supports the following parameters:

-   **x**: input array.
-   **mask**: mask array.

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   If a `mask` array element is falsy, the corresponding element in `x` is **included** in the output array; otherwise, the corresponding element in `x` is "masked" and thus **excluded** from the output array.
-   If provided an input array having a recognized [data type][@stdlib/array/dtypes], the function returns an array having the same [data type][@stdlib/array/dtypes] as the input array. Otherwise, the function **always** returns a "generic" array.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var zeroTo = require( '@stdlib/array/zero-to' );
var bernoulli = require( '@stdlib/random/array/bernoulli' );
var mskreject = require( '@stdlib/array/mskreject' );

// Generate a linearly spaced array:
var x = zeroTo( 20, 'generic' );
console.log( x );

// Generate a random mask:
var mask = bernoulli( x.length, 0.5, {
    'dtype': 'generic'
});
console.log( mask );

// Filter an array using the mask:
var y = mskreject( x, mask );
console.log( y );
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/array/mskfilter`][@stdlib/array/mskfilter]</span><span class="delimiter">: </span><span class="description">apply a mask to a provided input array.</span>

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

[@stdlib/array/dtypes]: https://github.com/stdlib-js/array/tree/main/dtypes

<!-- <related-links> -->

[@stdlib/array/mskfilter]: https://github.com/stdlib-js/array/tree/main/mskfilter

<!-- </related-links> -->

</section>

<!-- /.links -->
