npm package: @stdlib/array-base-cuevery-by-right
Description: Cumulatively test whether every array element in a provided array passes a test implemented by a predicate function, while iterating from right-to-left.
Author: The Stdlib Authors
Latest version: 0.1.1

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# cueveryByRight

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Cumulatively test whether every array element in a provided array passes a test implemented by a predicate function, while iterating from right-to-left.

<section class="installation">

## Installation

```bash
npm install @stdlib/array-base-cuevery-by-right
```

</section>

<section class="usage">

## Usage

```javascript
var cueveryByRight = require( '@stdlib/array-base-cuevery-by-right' );
```

#### cueveryByRight( x, predicate\[, thisArg ] )

Cumulatively tests whether every array element in a provided array passes a test implemented by a `predicate` function, while iterating from right-to-left.

```javascript
function fcn( value ) {
    return value > 0;
}

var x = [ 0, 0, 1, 1, 1 ];

var y = cueveryByRight( x, fcn );
// returns [ true, true, true, false, false ];
```

#### cueveryByRight.assign( x, out, stride, offset, predicate\[, thisArg ] )

Cumulatively tests whether every array element in a provided array passes a test implemented by a `predicate` function, while iterating from right-to-left, and assigns the results to the elements in the output array.

```javascript
function fcn( v ) {
    return v > 0;
}

var x = [ 0, 0, 1, 1, 1 ];
var y = [ false, null, false, null, false, null, false, null, false, null ];

var out = cueveryByRight.assign( x, y, 2, 0, fcn );
// returns [ true, null, true, null, true, null, false, null, false, null ]

var bool = ( out === y );
// returns true
```

The invoked `predicate` function is provided three arguments:

-   **value**: collection element.
-   **index**: collection index.
-   **collection**: input collection.

To set the function execution context, provide a `thisArg`.

```javascript
function fcn( v ) {
    this.count += 1;
    return ( v > 0 );
}

var x = [ 0, 0, 1, 1, 1 ];

var context = {
    'count': 0
};

var bool = cueveryByRight( x, fcn, context );
// returns [ true, true, true, false, false ]

var count = context.count;
// returns 4
```

</section>

<!-- /.usage -->

<section class="notes">

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var cueveryByRight = require( '@stdlib/array-base-cuevery-by-right' );

function isPositive( value ) {
    return ( value > 0 );
}

// Create an array of random values:
var x = discreteUniform( 10, -10, 10 );
console.log( x );

// Cumulatively test whether every array element passes a test, while iterating from right-to-left:
var out = cueveryByRight( x, isPositive );
console.log( out );
```

</section>

<!-- /.examples -->

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

<section class="related">

</section>

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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