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feat: add array/base/cuany-by-right #2667

Merged
merged 11 commits into from
Sep 25, 2024
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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 filled = require( '@stdlib/array/base/filled' );
var pkg = require( './../package.json' ).name;
var cuanyByRight = require( './../lib' ).cuanyByRight;
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// FUNCTIONS //

/**
* Creates a benchmark function.
*
* @private
* @param {PositiveInteger} len - array length
* @returns {Function} benchmark function
*/
function createBenchmark( len ) {
var x = filled( 1.5, len );
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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 = cuanyByRight.assign( x, y, 1, 0, isPositive );
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();
}
}

/**
* Predicate function to test if a value is positive.
*
* @private
* @param {number} value - input value
* @returns {boolean} boolean indicating whether the value is positive
*/
function isPositive( value ) {
return ( value > 0 );
}

// 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();
Original file line number Diff line number Diff line change
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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 pkg = require( './../package.json' ).name;
var cuanyByRight = require( './../lib' ).cuanyByRight;


// MAIN //

bench( pkg, function benchmark( b ) {
var x;
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var i;
var v;

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

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
v = cuanyByRight( x, isPositive );
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();
});

/**
* Predicate function to test if a value is positive.
*
* @private
* @param {number} value - input value
* @returns {boolean} boolean indicating whether the value is positive
*/
function isPositive( value ) {
return ( value > 0 );
}

Original file line number Diff line number Diff line change
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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 filled = require( '@stdlib/array/base/filled' );
var pkg = require( './../package.json' ).name;
var cuanyByRight = require( './../lib' ).cuanyByRight;


// 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 v;
var i;

b.tic();
for ( i = 0; i < b.iterations; i++ ) {
v = cuanyByRight( x, isPositive );
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();
}
}

/**
* Predicate function to test if a value is positive.
*
* @private
* @param {number} value - input value
* @returns {boolean} boolean indicating whether the value is positive
*/
function isPositive( value ) {
return ( value > 0 );
}

// 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+':len='+len, f );
}
}

main();
52 changes: 52 additions & 0 deletions lib/node_modules/@stdlib/array/base/cuany-by-right/docs/repl.txt
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Original file line number Diff line number Diff line change
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cuanyByRight( x )
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Cumulatively tests whether at least one element in a provided array is
truthy, starting from the rightmost element.

Parameters
----------
x: ArrayLikeObject
Input array.

Returns
-------
out: Array
Output array.

Examples
--------
> var x = [ false, false, true, false, false ];
> var y = cuanyByRight( x )
[ false, false, true, true, true ]


cuanyByRight.assign( x, y, stride, offset )
Cumulatively tests whether at least one element in an array is truthy, starting from the rightmost element, and assigns results to provided output array.

Parameters
----------
x: ArrayLikeObject
Input array.

y: ArrayLikeObject
Output array.

stride: integer
Output array stride.

offset: integer
Output array offset.

Returns
-------
y: ArrayLikeObject
Output array.

Examples
--------
> var x = [ false, false, true, false, false ];
> var y = [ false, null, false, null, false, null, false, null, false ];
> var result = cuanyByRight.assign( x, y, 2, 0 )
[ false, null, true, null, true, null, true, null, true ]

See Also
--------
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