Installations

npm install has-flag

Developer Guide

BETA

Typescript

No

Module System

ESM

Min. Node Version

>=12

Node Version

14.16.1

NPM Version

7.10.0 Score

99.8

Supply Chain

87.4

Quality

75.4

Maintenance

100

Vulnerability

100

License

Pull Requests

Open

0

Total

11

Closed

6

Merged

5

Issues

Open

0

Total

2

Closed

2

Releases

3

v5.0.1

Updated on Jul 19, 2021

v5.0.0

Updated on Apr 16, 2021

v4.0.0

Updated on Apr 06, 2019

View All 3 releases

Languages

2

JavaScript

TypeScript

JavaScript (87.6%)

TypeScript (12.4%)

Developer

sindresorhus

Download Statistics

Total Downloads

41,645,825,735

Last Day

12,459,527

Last Week

211,703,817

Last Month

920,668,582

Last Year

11,587,827,213

GitHub Statistics

MIT License

95 Stars

22 Commits

16 Forks

7 Watchers

1 Branches

7 Contributors

Updated on Apr 03, 2025

Bundle Size

407.00 B

Minified

282.00 B

Minified + Gzipped

Bundlephobia

Sponsor this package

https://github.com/sponsors/sindresorhus

Maintainers

1

View All 7 Contributors

Package Meta Information

Latest Version

5.0.1

Package Id

has-flag@5.0.1

Size

2.04 kB

NPM Version

7.10.0

Node Version

14.16.1

Published on

Jul 19, 2021

Total Downloads

Cumulative downloads

Total Downloads

41,645,825,735

Last Day

-11.5%

12,459,527

Compared to previous day

Last Week

-9.3%

211,703,817

Compared to previous week

Last Month

1.9%

920,668,582

Compared to previous month

Last Year

0.4%

11,587,827,213

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

3

ava tsd xo

has-flag

Check if argv has a specific flag

Install

$ npm install has-flag

Usage

1// foo.js
2import hasFlag from 'has-flag';
3
4hasFlag('unicorn');
5//=> true
6
7hasFlag('--unicorn');
8//=> true
9
10hasFlag('f');
11//=> true
12
13hasFlag('-f');
14//=> true
15
16hasFlag('foo=bar');
17//=> true
18
19hasFlag('foo');
20//=> false
21
22hasFlag('rainbow');
23//=> false

$ node foo.js -f --unicorn --foo=bar -- --rainbow

API

hasFlag(flag, argv?)

Returns a boolean for whether the flag exists.

It correctly stops looking after an -- argument terminator.

flag

Type: string

CLI flag to look for. The -- prefix is optional.

argv

Type: string[]
Default: process.argv

CLI arguments.

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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.

Score

4.2

/10

Last Scanned on 2025-06-23

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

Other packages similar to has-flag

Other packages similar to has-flag

has-flag

Installations

Developer Guide

No

ESM

>=12

14.16.1

7.10.0

Score

Pull Requests

0

11

6

5

Issues

0

2

2

Releases

Languages

Developer

sindresorhus

Download Statistics

GitHub Statistics

Bundle Size

407.00 B

282.00 B

Sponsor this package

Maintainers

Package Meta Information

Total Downloads

41,645,825,735

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dev Dependencies

has-flag

Install

Usage

API

hasFlag(flag, argv?)

flag

argv

10

10

10

10

10

1

0

0

0

0

0

0

0

4.2

/10