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@stdlib/iter-pop - 0.2.2 | npmpackage.info

@stdlib/iter-pop

Create an iterator which skips the last value of a provided iterator.

0.2.2

Apache-2.0

JavaScript

35.36 kB

4.2

Installations

npm install @stdlib/iter-pop

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS

Min. Node Version

>=0.10.0

Node Version

16.20.2

NPM Version

8.19.4 Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

Unable to fetch releases

Languages

JavaScript

JavaScript (100%)

Developer

stdlib-js

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

Apache-2.0 License

2 Stars

64 Commits

3 Watchers

5 Branches

14 Contributors

Updated on May 26, 2025

Sponsor this package

https://opencollective.com/stdlib

Maintainers

View All 14 Contributors

Package Meta Information

Latest Version

0.2.2

Package Id

@stdlib/iter-pop@0.2.2

Unpacked Size

35.36 kB

Size

10.05 kB

File Count

NPM Version

8.19.4

Node Version

16.20.2

Published on

Jul 27, 2024

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

@stdlib/assert-is-function @stdlib/assert-is-iterator-like @stdlib/string-format @stdlib/symbol-iterator @stdlib/utils-define-nonenumerable-read-only-property @stdlib/utils-noop @stdlib/error-tools-fmtprodmsg

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!

iterPop

Create an iterator which skips the last value of a provided iterator.

Installation

1npm install @stdlib/iter-pop

Usage

1var iterPop = require( '@stdlib/iter-pop' );

iterPop( iterator[, clbk[, thisArg]] )

Returns an iterator which skips the last value of a provided iterator.

1var array2iterator = require( '@stdlib/array-to-iterator' );
2
3var it = iterPop( array2iterator( [ 1, 2, 3, 4 ] ) );
4// returns <Object>
5
6var v = it.next().value;
7// returns 1
8
9v = it.next().value;
10// returns 2
11
12v = it.next().value;
13// returns 3
14
15var bool = it.next().done;
16// returns true

The returned iterator protocol-compliant object has the following properties:

next: function which returns an iterator protocol-compliant object containing the next iterated value (if one exists) assigned to a value property and a done property having a boolean value indicating whether the iterator is finished.
return: function which closes an iterator and returns a single (optional) argument in an iterator protocol-compliant object.

To invoke a callback upon skipping the last value of a provided iterator, provide a clbk argument.

1var array2iterator = require( '@stdlib/array-to-iterator' );
2
3function onPop( v ) {
4    console.log( v );
5    // => 4
6}
7
8var it = iterPop( array2iterator( [ 1, 2, 3, 4 ] ), onPop );
9// returns <Object>
10
11var v = it.next().value;
12// returns 1
13
14v = it.next().value;
15// returns 2
16
17v = it.next().value;
18// returns 3
19
20var bool = it.next().done;
21// returns true

The callback function is provided a single argument:

v: the skipped value

To set the callback execution context, provide a thisArg.

1var array2iterator = require( '@stdlib/array-to-iterator' );
2
3function onPop() {
4    this.count += 1;
5}
6
7var ctx = {
8    'count': 0
9};
10
11var it = iterPop( array2iterator( [ 1, 2, 3, 4 ] ), onPop, ctx );
12// returns <Object>
13
14var v = it.next().value;
15// returns 1
16
17v = it.next().value;
18// returns 2
19
20v = it.next().value;
21// returns 3
22
23var bool = it.next().done;
24// returns true
25
26bool = ( ctx.count === 1 );
27// returns true

Notes

If an environment supports Symbol.iterator and a provided iterator is iterable, the returned iterator is iterable.

Examples

1var randu = require( '@stdlib/random-iter-randu' );
2var iterPop = require( '@stdlib/iter-pop' );
3
4// Create a seeded iterator for generating pseudorandom numbers:
5var rand = randu({
6    'seed': 1234,
7    'iter': 10
8});
9
10// Create an iterator which skips the last number:
11var it = iterPop( rand );
12
13// Perform manual iteration...
14var v;
15while ( true ) {
16    v = it.next();
17    if ( v.done ) {
18        break;
19    }
20    console.log( v.value );
21}

Notice

This package is part of 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, see the main project repository.

Community

License

See LICENSE.

Copyright

No vulnerabilities found.

10

Binary-Artifacts

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10

Dangerous-Workflow

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10

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

10

License

Determines if the project has defined a license.

9

Security-Policy

Determines if the project has published a security policy.

3

Pinned-Dependencies

Determines if the project has declared and pinned the dependencies of its build process.

Reason

dependency not pinned by hash detected -- score normalized to 3

Details

Warn: third-party GitHubAction not pinned by hash: .github/workflows/productionize.yml:85: update your workflow using https://app.stepsecurity.io/secureworkflow/stdlib-js/iter-pop/productionize.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/productionize.yml:275: update your workflow using https://app.stepsecurity.io/secureworkflow/stdlib-js/iter-pop/productionize.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/productionize.yml:449: update your workflow using https://app.stepsecurity.io/secureworkflow/stdlib-js/iter-pop/productionize.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/productionize.yml:457: update your workflow using https://app.stepsecurity.io/secureworkflow/stdlib-js/iter-pop/productionize.yml/main?enable=pin
Warn: third-party GitHubAction not pinned by hash: .github/workflows/productionize.yml:623: update your workflow using https://app.stepsecurity.io/secureworkflow/stdlib-js/iter-pop/productionize.yml/main?enable=pin
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Warn: npmCommand not pinned by hash: .github/workflows/test_coverage.yml:67
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Warn: npmCommand not pinned by hash: .github/workflows/test_coverage.yml:74
Warn: npmCommand not pinned by hash: .github/workflows/test_install.yml:75
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Warn: npmCommand not pinned by hash: .github/workflows/test_install.yml:75
Warn: npmCommand not pinned by hash: .github/workflows/test_published_package.yml:93
Info: 33 out of 33 GitHub-owned GitHubAction dependencies pinned
Info: 19 out of 24 third-party GitHubAction dependencies pinned
Info: 0 out of 32 npmCommand dependencies pinned

0

Code-Review

Determines if the project requires human code review before pull requests (aka merge requests) are merged.

0

CII-Best-Practices

Determines if the project has an OpenSSF (formerly CII) Best Practices Badge.

0

Maintained

Determines if the project is "actively maintained".

0

SAST

Determines if the project uses static code analysis.

0

Fuzzing

Determines if the project uses fuzzing.

0

Token-Permissions

Determines if the project's workflows follow the principle of least privilege.

0

Branch-Protection

Determines if the default and release branches are protected with GitHub's branch protection settings.

Score

4.2

/10

Last Scanned on 2025-06-30

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

@stdlib/iter-pop

Installations

Developer Guide

Yes

CommonJS

>=0.10.0

16.20.2

8.19.4

Pull Requests

0

0

0

Issues

0

0

0

Releases

Unable to fetch releases

Languages

Developer

Download Statistics

GitHub Statistics

Sponsor this package

Maintainers

Package Meta Information

Total Downloads

NaN

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

iterPop

Installation

Usage

iterPop( iterator[, clbk[, thisArg]] )

Notes

Examples

See Also

Notice

Community

License

Copyright

10

10

10

10

9

3

0

0

0

0

0

0

0

4.2

/10