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Gathering detailed insights and metrics for @acdibble/lazy-range

@acdibble/lazy-range - 0.4.0 | npmpackage.info

@acdibble/lazy-range

A port of Python's range function into JS

0.4.0

MIT

TypeScript

11.64 kB

2.5

Installations

npm install @acdibble/lazy-range

Developer Guide

BETA

Typescript

No

Module System

CommonJS

Node Version

12.14.1

NPM Version

6.14.1 Pull Requests

Open

10

Total

461

Closed

398

Merged

53

Issues

Open

0

Total

0

Closed

0

Releases

Unable to fetch releases

Languages

TypeScript

TypeScript (100%)

Developer

acdibble

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

MIT License

3 Stars

107 Commits

1 Watchers

12 Branches

1 Contributors

Updated on Jan 27, 2023

Maintainers

View All 1 Contributors

Package Meta Information

Latest Version

0.4.0

Package Id

@acdibble/lazy-range@0.4.0

Unpacked Size

11.64 kB

Size

3.68 kB

File Count

NPM Version

6.14.1

Node Version

12.14.1

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

Dev Dependencies

@babel/parser @babel/types @types/node @typescript-eslint/eslint-plugin @typescript-eslint/parser eslint eslint-config-airbnb-base eslint-plugin-import patch-package tap typescript

Python 3 `range()` in JS

This is a memory-efficient range class. It only stores the start, stop, step, and length for a range. The values are generated as necessary via Symbol.iterator. It works with any ES2015 compliant browsers.

Additionally, it's been adapted to match expected JavaScript behavior, e.g. using LazyRange#at to look up an out of bounds index will return undefined, rather than throwing an error.

Examples:

1const LazyRange = require('@acdibble/lazy-range');

or with modules:

1import LazyRange from '@acdibble/lazy-range';

Just a stop parameter:

1>>> list(range(10))
2[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

1> [...new LazyRange(10)];
2[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
3> Array.from(new LazyRange(10));
4[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]

With start and stop parameter:

1>>> list(range(-10, 0))
2[-10, -9, -8, -7, -6, -5, -4, -3, -2, -1]

1> [...new LazyRange(-10, 0)];
2[ -10, -9, -8, -7, -6, -5, -4, -3, -2, -1 ]

With start, stop, and step parameters:

1>>> list(range(1, 100, 25))
2[1, 26, 51, 76]

1> [...new LazyRange(1, 100, 25)];
2[ 1, 26, 51, 76 ]

Iteration:

1>>> sum = 0
2>>> for x in range(10):
3...     sum += x
4...
5>>> sum
645

1> let sum = 0;
2undefined
3> for (const x of new LazyRange(10)) {
4...   sum += x;
5... }
645

1> [...new LazyRange(10)].reduce((acc, num) => acc + num, 0);
245

Equality:

1range(0, 3, 2) == range(0, 4, 2)
2True

1> new LazyRange(0, 3, 2).equals(new LazyRange(0, 4, 2))
2true

Slice:

1>>> range(0, 20, 2)[4:-3:2]
2range(8, 14, 4)

1> new LazyRange(0, 20, 2).slice(4, -3, 2);
2LazyRange { start: 8, step: 4, stop: 14, length: 2 }

Length:

1>>> len(range(10))
210

1> new LazyRange(10).length;
210

Presence:

1>>> 10 in range(0, 20, 2)
2True

1> new LazyRange(0, 20, 2).has(10);
2true

Lookup by index:

1>>> range(1, 19, 3)[5]
216

1> new LazyRange(1, 19, 3).at(5);
216

Find index:

1>>> range(1, 19, 3).index(13)
24

1> new LazyRange(1, 19, 3).indexOf(13);
24

No vulnerabilities found.

10

Binary-Artifacts

Determines if the project has generated executable (binary) artifacts in the source repository.

10

Dangerous-Workflow

Determines if the project's GitHub Action workflows avoid dangerous patterns.

10

License

Determines if the project has defined a license.

0

Code-Review

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

0

Pinned-Dependencies

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

0

Maintained

Determines if the project is "actively maintained".

0

Token-Permissions

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

0

CII-Best-Practices

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

0

Security-Policy

Determines if the project has published a security policy.

0

Fuzzing

Determines if the project uses fuzzing.

0

Branch-Protection

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

0

SAST

Determines if the project uses static code analysis.

0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Score

2.5

/10

Last Scanned on 2025-07-14

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

@acdibble/lazy-range

Installations

Developer Guide

No

CommonJS

12.14.1

6.14.1

Pull Requests

10

461

398

53

Issues

0

0

0

Releases

Unable to fetch releases

Languages

Developer

acdibble

Download Statistics

GitHub Statistics

Maintainers

Package Meta Information

Total Downloads

NaN

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

Python 3 range() in JS

Examples:

Just a stop parameter:

With start and stop parameter:

With start, stop, and step parameters:

Iteration:

Equality:

Slice:

Length:

Presence:

Lookup by index:

Find index:

10

10

10

0

0

0

0

0

0

0

0

0

0

2.5

/10

Python 3 `range()` in JS