@stdlib/array/base/cuevery-by-right/README.md

Arrays.

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# cueveryByRight

> 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="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>

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<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 -->

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