Skip to content

Commit 1ba331f

Browse files
stdlib-botstdlib-bot
committed
Auto-generated commit
1 parent fb1658c commit 1ba331f

File tree

13 files changed

+817
-0
lines changed

13 files changed

+817
-0
lines changed

‎CHANGELOG.md‎

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -10,6 +10,8 @@
1010

1111
### Features
1212

13+
- [`33b4e79`](https://github.com/stdlib-js/stdlib/commit/33b4e79ad1e9cba8605ed44989d02f9a46b79663) - add `nulls` to namespace
14+
- [`419efe1`](https://github.com/stdlib-js/stdlib/commit/419efe14ee9dfc8224b419864f9314614f27786b) - add `array/nulls`
1315
- [`9165bd6`](https://github.com/stdlib-js/stdlib/commit/9165bd6bd22746c8e69c14e75fd931485515a194) - add `falses` to namespace
1416
- [`836f561`](https://github.com/stdlib-js/stdlib/commit/836f5610785c2b1eb8efd5d5234fec349dac8f1d) - add `array/base/falses`
1517
- [`afb3293`](https://github.com/stdlib-js/stdlib/commit/afb32938742a510a3357156736067ee8fdaba07d) - add `trues` to namespace
@@ -264,6 +266,8 @@ A total of 38 issues were closed in this release:
264266

265267
<details>
266268

269+
- [`33b4e79`](https://github.com/stdlib-js/stdlib/commit/33b4e79ad1e9cba8605ed44989d02f9a46b79663) - **feat:** add `nulls` to namespace _(by Athan Reines)_
270+
- [`419efe1`](https://github.com/stdlib-js/stdlib/commit/419efe14ee9dfc8224b419864f9314614f27786b) - **feat:** add `array/nulls` _(by Athan Reines)_
267271
- [`3186ff6`](https://github.com/stdlib-js/stdlib/commit/3186ff670bcc66153a58b94111f5688fa59170e7) - **docs:** fix alias _(by Athan Reines)_
268272
- [`a4557ba`](https://github.com/stdlib-js/stdlib/commit/a4557ba86aebbc0535f0989f59ba3461ad6b1d89) - **refactor:** perform explicit dtype validation _(by Athan Reines)_
269273
- [`bfc9322`](https://github.com/stdlib-js/stdlib/commit/bfc9322020792df4f47ea649d6fbed509284f6bd) - **refactor:** perform explicit dtype validation _(by Athan Reines)_

‎lib/index.js‎

Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -472,6 +472,15 @@ setReadOnly( ns, 'nansLike', require( './../nans-like' ) );
472472
*/
473473
setReadOnly( ns, 'nextDataType', require( './../next-dtype' ) );
474474

475+
/**
476+
* @name nulls
477+
* @memberof ns
478+
* @readonly
479+
* @constructor
480+
* @see {@link module:@stdlib/array/nulls}
481+
*/
482+
setReadOnly( ns, 'nulls', require( './../nulls' ) );
483+
475484
/**
476485
* @name oneTo
477486
* @memberof ns

‎nulls/README.md‎

Lines changed: 117 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,117 @@
1+
<!--
2+
3+
@license Apache-2.0
4+
5+
Copyright (c) 2026 The Stdlib Authors.
6+
7+
Licensed under the Apache License, Version 2.0 (the "License");
8+
you may not use this file except in compliance with the License.
9+
You may obtain a copy of the License at
10+
11+
http://www.apache.org/licenses/LICENSE-2.0
12+
13+
Unless required by applicable law or agreed to in writing, software
14+
distributed under the License is distributed on an "AS IS" BASIS,
15+
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16+
See the License for the specific language governing permissions and
17+
limitations under the License.
18+
19+
-->
20+
21+
# nulls
22+
23+
> Create an array filled with nulls and having a specified length.
24+
25+
<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
26+
27+
<section class="intro">
28+
29+
</section>
30+
31+
<!-- /.intro -->
32+
33+
<!-- Package usage documentation. -->
34+
35+
<section class="usage">
36+
37+
## Usage
38+
39+
```javascript
40+
var nulls = require( '@stdlib/array/nulls' );
41+
```
42+
43+
#### nulls( length\[, dtype] )
44+
45+
Creates an array filled with nulls and having a specified length.
46+
47+
```javascript
48+
var arr = nulls( 2 );
49+
// returns [ null, null ]
50+
```
51+
52+
The function recognizes the following data types:
53+
54+
- `generic`: generic JavaScript values.
55+
56+
By default, the output array data type is `'generic'`. To specify an alternative data type, provide a `dtype` argument.
57+
58+
```javascript
59+
var arr = nulls( 2, 'generic' );
60+
// returns [ null, null ]
61+
```
62+
63+
</section>
64+
65+
<!-- /.usage -->
66+
67+
<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
68+
69+
<section class="notes">
70+
71+
</section>
72+
73+
<!-- /.notes -->
74+
75+
<!-- Package usage examples. -->
76+
77+
<section class="examples">
78+
79+
## Examples
80+
81+
<!-- eslint no-undef: "error" -->
82+
83+
```javascript
84+
var nulls = require( '@stdlib/array/nulls' );
85+
86+
// Create a filled array:
87+
var x = nulls( 10 );
88+
console.log( x );
89+
```
90+
91+
</section>
92+
93+
<!-- /.examples -->
94+
95+
<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
96+
97+
<section class="references">
98+
99+
</section>
100+
101+
<!-- /.references -->
102+
103+
<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
104+
105+
<section class="related">
106+
107+
</section>
108+
109+
<!-- /.related -->
110+
111+
<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
112+
113+
<section class="links">
114+
115+
</section>
116+
117+
<!-- /.links -->

‎nulls/benchmark/benchmark.js‎

Lines changed: 66 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,66 @@
1+
/**
2+
* @license Apache-2.0
3+
*
4+
* Copyright (c) 2026 The Stdlib Authors.
5+
*
6+
* Licensed under the Apache License, Version 2.0 (the "License");
7+
* you may not use this file except in compliance with the License.
8+
* You may obtain a copy of the License at
9+
*
10+
* http://www.apache.org/licenses/LICENSE-2.0
11+
*
12+
* Unless required by applicable law or agreed to in writing, software
13+
* distributed under the License is distributed on an "AS IS" BASIS,
14+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15+
* See the License for the specific language governing permissions and
16+
* limitations under the License.
17+
*/
18+
19+
'use strict';
20+
21+
// MODULES //
22+
23+
var bench = require( '@stdlib/bench' );
24+
var isCollection = require( '@stdlib/assert/is-collection' );
25+
var format = require( '@stdlib/string/format' );
26+
var pkg = require( './../package.json' ).name;
27+
var nulls = require( './../lib' );
28+
29+
30+
// MAIN //
31+
32+
bench( pkg, function benchmark( b ) {
33+
var arr;
34+
var i;
35+
b.tic();
36+
for ( i = 0; i < b.iterations; i++ ) {
37+
arr = nulls( 0 );
38+
if ( arr.length !== 0 ) {
39+
b.fail( 'should have length 0' );
40+
}
41+
}
42+
b.toc();
43+
if ( !isCollection( arr ) ) {
44+
b.fail( 'should return a typed array' );
45+
}
46+
b.pass( 'benchmark finished' );
47+
b.end();
48+
});
49+
50+
bench( format( '%s:dtype=%s', pkg, 'generic' ), function benchmark( b ) {
51+
var arr;
52+
var i;
53+
b.tic();
54+
for ( i = 0; i < b.iterations; i++ ) {
55+
arr = nulls( 0, 'generic' );
56+
if ( arr.length !== 0 ) {
57+
b.fail( 'should have length 0' );
58+
}
59+
}
60+
b.toc();
61+
if ( !isCollection( arr ) ) {
62+
b.fail( 'should return an array' );
63+
}
64+
b.pass( 'benchmark finished' );
65+
b.end();
66+
});

‎nulls/benchmark/benchmark.length.generic.js‎

Lines changed: 94 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,94 @@
1+
/**
2+
* @license Apache-2.0
3+
*
4+
* Copyright (c) 2026 The Stdlib Authors.
5+
*
6+
* Licensed under the Apache License, Version 2.0 (the "License");
7+
* you may not use this file except in compliance with the License.
8+
* You may obtain a copy of the License at
9+
*
10+
* http://www.apache.org/licenses/LICENSE-2.0
11+
*
12+
* Unless required by applicable law or agreed to in writing, software
13+
* distributed under the License is distributed on an "AS IS" BASIS,
14+
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15+
* See the License for the specific language governing permissions and
16+
* limitations under the License.
17+
*/
18+
19+
'use strict';
20+
21+
// MODULES //
22+
23+
var bench = require( '@stdlib/bench' );
24+
var pow = require( '@stdlib/math/base/special/pow' );
25+
var isCollection = require( '@stdlib/assert/is-collection' );
26+
var format = require( '@stdlib/string/format' );
27+
var pkg = require( './../package.json' ).name;
28+
var nulls = require( './../lib' );
29+
30+
31+
// FUNCTIONS //
32+
33+
/**
34+
* Creates a benchmark function.
35+
*
36+
* @private
37+
* @param {PositiveInteger} len - array length
38+
* @returns {Function} benchmark function
39+
*/
40+
function createBenchmark( len ) {
41+
return benchmark;
42+
43+
/**
44+
* Benchmark function.
45+
*
46+
* @private
47+
* @param {Benchmark} b - benchmark instance
48+
*/
49+
function benchmark( b ) {
50+
var arr;
51+
var i;
52+
53+
b.tic();
54+
for ( i = 0; i < b.iterations; i++ ) {
55+
arr = nulls( len, 'generic' );
56+
if ( arr.length !== len ) {
57+
b.fail( 'unexpected length' );
58+
}
59+
}
60+
b.toc();
61+
if ( !isCollection( arr ) ) {
62+
b.fail( 'should return an array' );
63+
}
64+
b.pass( 'benchmark finished' );
65+
b.end();
66+
}
67+
}
68+
69+
70+
// MAIN //
71+
72+
/**
73+
* Main execution sequence.
74+
*
75+
* @private
76+
*/
77+
function main() {
78+
var len;
79+
var min;
80+
var max;
81+
var f;
82+
var i;
83+
84+
min = 1; // 10^min
85+
max = 6; // 10^max
86+
87+
for ( i = min; i <= max; i++ ) {
88+
len = pow( 10, i );
89+
f = createBenchmark( len );
90+
bench( format( '%s:dtype=%s,len=%d', pkg, 'generic', len ), f );
91+
}
92+
}
93+
94+
main();

‎nulls/docs/repl.txt‎

Lines changed: 33 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,33 @@
1+
2+
{{alias}}( length[, dtype] )
3+
Returns an array filled with nulls and having a specified length.
4+
5+
The function supports the following data types:
6+
7+
- generic: generic JavaScript values
8+
9+
The default array data type is `generic`.
10+
11+
Parameters
12+
----------
13+
length: integer
14+
Array length.
15+
16+
dtype: string (optional)
17+
Data type. Default: 'generic'.
18+
19+
Returns
20+
-------
21+
out: Array
22+
Output array.
23+
24+
Examples
25+
--------
26+
> var arr = {{alias}}( 2 )
27+
[ null, null ]
28+
> arr = {{alias}}( 2, 'generic' )
29+
[ null, null ]
30+
31+
See Also
32+
--------
33+

0 commit comments

Comments
 (0)