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23 changes: 23 additions & 0 deletions CHANGELOG.md
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<!-- /.package -->

<section class="package" id="array-base-cuevery-by-unreleased">

#### [@stdlib/array/base/cuevery-by](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/cuevery-by)

<details>

<section class="features">

##### Features

- [`e3078e5`](https://github.com/stdlib-js/stdlib/commit/e3078e56df8858a8f79fb3f3ded3fc76da955db5) - add `array/base/cuevery-by` package

</section>

<!-- /.features -->

</details>

</section>

<!-- /.package -->

<section class="package" id="array-base-cunone-by-unreleased">

#### [@stdlib/array/base/cunone-by](https://github.com/stdlib-js/stdlib/tree/develop/lib/node_modules/%40stdlib/array/base/cunone-by)
Expand Down Expand Up @@ -423,6 +445,7 @@ A total of 6 people contributed to this release. Thank you to the following cont

<details>

- [`e3078e5`](https://github.com/stdlib-js/stdlib/commit/e3078e56df8858a8f79fb3f3ded3fc76da955db5) - **feat:** add `array/base/cuevery-by` package _(by Kaif Mohd, Philipp Burckhardt)_
- [`2091d38`](https://github.com/stdlib-js/stdlib/commit/2091d38aec245202fe1bbff462b12d0f5ed54ee1) - **feat:** add `array/base/cusome` _(by yaswanth, Philipp Burckhardt)_
- [`43aa58f`](https://github.com/stdlib-js/stdlib/commit/43aa58f81dcad604f11a5715a1546c015b0a9623) - **feat:** add `isByteOrder` to namespace _(by Athan Reines)_
- [`b18478e`](https://github.com/stdlib-js/stdlib/commit/b18478e236e9cb6991d5a0f952d217e043e46587) - **feat:** add `array/base/assert/is-byte-order` _(by Athan Reines)_
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145 changes: 145 additions & 0 deletions base/cuevery-by/README.md
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<!--
@license Apache-2.0
Copyright (c) 2024 The Stdlib Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->

# cueveryBy

> Cumulatively test whether every array element in a provided array passes a test implemented by a predicate function.
<section class="usage">

## Usage

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

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

Cumulatively tests whether every array element in a provided array passes a test implemented by a predicate function.

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

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

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

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 = [ 1, 1, 0, 0, 0 ];

var context = {
'count': 0
};

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

var count = context.count;
// returns 3
```

#### cueveryBy.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 and assigns the results to a provided output array.

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

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

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

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

</section>

<!-- /.usage -->

<section class="notes">

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var bernoulli = require( '@stdlib/random/array/bernoulli' );
var cueveryBy = require( '@stdlib/array/base/cuevery-by' );

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

// Create an array of random values:
var x = bernoulli( 10, 0.8 );
console.log( x );

// Cumulatively tests whether every array element passes a test:
var y = cueveryBy( x, fcn );
console.log( y );
```

</section>

<!-- /.examples -->

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

<section class="related">

</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">

</section>

<!-- /.links -->
99 changes: 99 additions & 0 deletions base/cuevery-by/benchmark/benchmark.assign.length.js
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/**
* @license Apache-2.0
*
* Copyright (c) 2024 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

'use strict';

// MODULES //

var bench = require( '@stdlib/bench' );
var pow = require( '@stdlib/math/base/special/pow' );
var isArray = require( '@stdlib/assert/is-array' );
var isPositiveInteger = require( '@stdlib/assert/is-positive-integer' ).isPrimitive;
var filled = require( './../../../base/filled' );
var pkg = require( './../package.json' ).name;
var cueveryBy = require( './../lib' );


// FUNCTIONS //

/**
* Creates a benchmark function.
*
* @private
* @param {PositiveInteger} len - array length
* @returns {Function} benchmark function
*/
function createBenchmark( len ) {
var x = filled( 1.5, len );
return benchmark;

/**
* Benchmark function.
*
* @private
* @param {Benchmark} b - benchmark instance
*/
function benchmark( b ) {
var y;
var v;
var i;

y = filled( false, len );

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
v = cueveryBy.assign( x, y, 1, 0, isPositiveInteger );
if ( typeof v !== 'object' ) {
b.fail( 'should return an array' );
}
}
b.toc();
if ( !isArray( v ) ) {
b.fail( 'should return an array' );
}
b.pass( 'benchmark finished' );
b.end();
}
}


// MAIN //

/**
* Main execution sequence.
*
* @private
*/
function main() {
var len;
var min;
var max;
var f;
var i;

min = 1; // 10^min
max = 6; // 10^max

for ( i = min; i <= max; i++ ) {
len = pow( 10, i );
f = createBenchmark( len );
bench( pkg+':assign:len='+len, f );
}
}

main();
53 changes: 53 additions & 0 deletions base/cuevery-by/benchmark/benchmark.js
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/**
* @license Apache-2.0
*
* Copyright (c) 2024 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

'use strict';

// MODULES //

var bench = require( '@stdlib/bench' );
var isArray = require( '@stdlib/assert/is-array' );
var zeroTo = require( './../../../base/zero-to' );
var isPositiveInteger = require( '@stdlib/assert/is-positive-integer' ).isPrimitive;
var pkg = require( './../package.json' ).name;
var cueveryBy = require( './../lib' );


// MAIN //

bench( pkg+'::copy:len=100', function benchmark( b ) {
var x;
var i;
var v;

x = zeroTo( 100 );

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
v = cueveryBy( x, isPositiveInteger );
if ( typeof v !== 'object' ) {
b.fail( 'should return an array' );
}
}
b.toc();
if ( !isArray( v ) ) {
b.fail( 'should return an array' );
}
b.pass( 'benchmark finished' );
b.end();
});
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