R Observatory: Metrics for uaparserjs version 0.4.1

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

uaparserjs

0.4.1Package record

Parse 'User-Agent' Strings

1packages depend

5.3Kdownloads / year

83.2%test coverage

13/13flavors OK

Overview

About

Maintained by Greg HuntCRAN page ↗GitHub ↗Issues ↗

Parses HTTP user agent strings and returns user agent, device and OS information. This is a ‘V8’-backed package that uses the UA, device and OS definitions from the ‘ua-parser’ project https://github.com/ua-parser.

Changes in 0.4.1

Note: Includes UAP-Core regexes.yaml commits up to: Mon Aug 24 13:09:38 2026 +0100 73e7340
Changed cache from list to env (see README.md for details)
added tests

From NEWS.md in the release

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("uaparserjs", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("gregfrog/uaparserjs")

Development version from gregfrog/uaparserjs. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-uaparserjs

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-uaparserjs

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-uaparserjs

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

13OK

CRAN check page ↗

Slowest check: 2.2 min · r-oldrel-windows-x86_64

Status changes

OK13 OK2026-08-04
NOTE12 OK, 1 NOTE2026-08-01
OK12 OK2026-04-25
NOTE14 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.4.1

README· In the repository, left out of the releaseVignettesNoNEWSYes · 100% structured · mentions 0.4.1Citation fileNoWebsitenot declared in DESCRIPTION

Help pages: 2includes a package overview page
Examples that run: 100%1 run in a plain check
Exported functions with examples: 100%
Documented parameters: 100%
Return-value docs: 100%
Help pages citing references: 50%

How these are measured

Downloads

5.3K

CRAN downloads in the past year

Rank #7,011 · ~14/day · ~441/mo

Releases R versions

Daily download trend is not available in this view yet.

40830 days

1.2K90 days

5.3K1 year

Compare downloads with other packages →

Also on135 r2u3 autocran101 c2d4u

How downloads are counted

Repository

gregfrog/uaparserjs ↗Account: gregfrog

16Stars

4Forks

0Open issues

0Open PRs

1Releases

55Commits

3Commit identities

License file reads as Apache-2.0 · 55 commits · Last activity 2026-09-03 · Default branch at 0.4.2, ahead of CRAN 0.4.1 (checked 2026-10-18)

Responsiveness

How these are sampled

PRs merged (all time): 50%
Median days to close, 50 most recently updated closed issues: 289
Median days to close, 50 most recently updated closed PRs: 228

Stars over time

2021-05-07 · 162026-07-07 · 16

How these are measured

PracticesBeta

6 development-tooling and community-health practices detected across 4 families in the upstream repository

Checks run against github.com/gregfrog/uaparserjs on 2026-10-18.

Continuous integration (1)

GitHub Actions

Docs source (1)

README.Rmd

Reproducibility and dev environment (1)

Makefile

Lint, format, editor (3)

lintrVS CodeRStudio project

How this is detected·Detection ruleset v3 (2026-09-26)

Dependencies

Declared dependencies

5 external dependencies (excludes base and recommended)

Installing uaparserjs adds 15 packages (8 with compiled code, 7.0 MB of source tarballs). Heaviest: Rcpp 1.8 MB, jsonlite 1.0 MB, vctrs 1.0 MB.

Depends (1)

R >= 3.5.0

Imports (2)

progress V8

LinkingTo (0)

none

Suggests (3)

tinytest yaml tibble

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

1direct

0indirect

Imports 1

Depends, Imports or LinkingTo, most downloaded first

WebAnalytics

How these are counted

Code & Tests

People & History

People (6)

Greg Hunt

Tobie Langel

Author

uap-core

Bob Rudis

Author, Copyright holder

Lindsey Simon

Author

uap-core

Colman Humphrey

Contributor · added in 0.3.1

Jim Vine

Contributor · added in 0.4.0

Previously maintained by Bob Rudis (0.1.0 to 0.3.5).

Releases (8)

Pick two releases to compare their code metrics.

0.4.1Latest
record
2026-08-28 · current release · diff ↗
0.4.0
record
2026-07-02 · diff ↗
0.3.8
record
2026-05-09 · diff ↗
R
R 4.6.0 released · 2026-04-24
0.3.7
record
2026-04-01 · diff ↗
0.3.6
record
2026-03-23 · diff ↗
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
R
R 4.2.0 released · 2022-04-22
R
R 4.1.0 released · 2021-05-18
0.3.5
record
2020-05-11 · diff ↗
R
R 4.0.0 released · 2020-04-24
0.3.1
record
2020-04-01 · diff ↗ ·
added 1 export
get_cache
R
R 3.6.0 released · 2019-04-26
R
R 3.5.0 released · 2018-04-23

Show 3 earlier eventsHide 3 earlier events

R
R 3.4.0 released · 2017-04-21
0.1.0
record
2016-08-05
R
R 3.3.0 released · 2016-05-03

Package metadata

First published: 2016-08-05
Total releases: 8 / 10 yrs
License: Apache License 2.0 | file LICENSE OSI
Minimum R: ≥ 3.5.0
Download size: 1.0 MB

Appears in task views

Web Technologies and Services

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("uaparserjs")

Format

Hunt, G., Humphrey, C., Langel, T., Rudis, B., Simon, L., & Vine, J. (2026). uaparserjs: Parse 'User-Agent' Strings (Version 0.4.1) [Computer software]. https://doi.org/10.32614/CRAN.package.uaparserjs

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for uaparserjs version 0.4.1 [Data set]. HJJB, LLC. Data release v2026-10-21. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-21, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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